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Triple-Channel Digital Isolators ADuM1310/ADUM1311
FEATURES
Low power operation 5 V operation 1.7 mA per channel max @ 0 Mbps to 2 Mbps 4.0 mA per channel max @ 2 Mbps to 10 Mbps 3 V operation 1.0 mA per channel max @ 0 Mbps to 2 Mbps 2.1 mA per channel max @ 2 Mbps to 10 Mbps Bidirectional communication 3 V/5 V level translation Schmitt trigger inputs High temperature operation: 105C Up to 10 Mbps data rate (NRZ) Programmable default output state High common-mode transient immunity: >25 kV/s 16-lead Pb-free SOIC wide body package 8.1 mm external creepage Safety and regulatory approvals UL recognition: 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A VDE certificate of conformity DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000 VIORM = 560 V peak working voltage
FUNCTIONAL BLOCK DIAGRAMS
VDD1 GND1 VIA VIB VIC NC DISABLE GND1
1 16
VDD2 GND2 VOA VOB VOC NC CTRL2 GND2
04904-001
04904-002
2
15
3
ENCODE ENCODE ENCODE
DECODE DECODE DECODE
14
4
13
5
12
6
11
7
10
8
9
Figure 1. ADuM1310
VDD1 GND1 VIA VIB VOC NC
1
16
VDD2 GND2 VOA VOB VIC NC CTRL2 GND2
2
15
3
ENCODE ENCODE DECODE
DECODE DECODE ENCODE
14
4
13
5
12
6
11
APPLICATIONS
General-purpose multichannel isolation SPI(R) interface/data converter isolation RS-232/RS-422/RS-485 transceiver Industrial field bus isolation
CTRL1 GND1
7 10 8 9
Figure 2. ADUM1311
GENERAL DESCRIPTION
The ADuM131x1 are 3-channel digital isolators based on Analog Devices, Inc. iCoupler(R) technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices. By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, maximum operating temperature, and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The iCoupler also offers higher
Rev. F
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
channel densities and more options for channel directionality. The ADuM131x isolators provide three independent isolation channels in a variety of channel configurations and data rates up to 10 Mbps (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. All products allow the user to predetermine the default output state in the absence of input VDD1 power with a simple control pin. Unlike other optocoupler alternatives, the ADuM131x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/ power-down conditions.
1
Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075 329. Other patents pending.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2004-2007 Analog Devices, Inc. All rights reserved.
ADuM1310/ADUM1311 TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics--5 V Operation................................ 3 Electrical Characteristics--3 V Operation................................ 5 Electrical Characteristics--Mixed 5 V/3 V or 3 V/5 V Operation....................................................................................... 7 Package Characteristics ............................................................. 10 Regulatory Information............................................................. 10 Insulation and Safety-Related Specifications.......................... 10 DIN EN 60747-5-2 (VDE 0884 Part 2) Insulation Characteristics ............................................................................ 11 Recommended Operating Conditions .................................... 11 Absolute Maximum Ratings ......................................................... 12 ESD Caution................................................................................ 12 Pin Configurations and Function Descriptions ......................... 13 Typical Performance Characteristics ........................................... 16 Application Information................................................................ 18 PC Board Layout ........................................................................ 18 Propagation Delay Related Parameters.................................... 18 DC Correctness and Magnetic Field Immunity..................... 18 Power Consumption .................................................................. 19 Outline Dimensions ....................................................................... 20 Ordering Guide .......................................................................... 20
REVISION HISTORY
1/07--Rev. E to Rev. F Added ADUM1311 .............................................................Universal Changes to Typical Performance Characteristics....................... 16 Changes to Ordering Guide .......................................................... 20 10/06--Rev. D to Rev. E Removed ADuM1410 ........................................................Universal Updated Format..................................................................Universal Change to Figure 3 ......................................................................... 10 Changes to Table 10........................................................................ 10 Changes to Application Information ........................................... 12 Updated Outline Dimensions ....................................................... 18 Changes to Ordering Guide .......................................................... 18 3/06--Rev. C to Rev. D Added Note 1 and Changes to Figure 2..........................................1 Changes to Absolute Maximum Ratings..................................... 11 11/05--Rev. SpB to Rev. C 5/05--Rev. SpA to Rev. SpB Changes to Table 6.............................................................................9 10/04--Data Sheet Changed from Rev. Sp0 to Rev. SpA Changes to Table 5.............................................................................9 6/04--Revision Sp0: Initial Version
Rev. F | Page 2 of 20
ADuM1310/ADUM1311 SPECIFICATIONS
ELECTRICAL CHARACTERISTICS--5 V OPERATION 1
4.5 V VDD1 5.5 V, 4.5 V VDD2 5.5 V; all min/max specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25C, VDD1 = VDD2 = 5 V. Table 1.
Parameter DC SPECIFICATIONS ADuM1310, Total Supply Current, Three Channels 2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW Grade Only) VDD1 Supply Current VDD2 Supply Current ADUM1311, Total Supply Current, Three Channels2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW Grade Only) VDD1 Supply Current VDD2 Supply Current For All Models Input Currents Symbol Min Typ Max Unit Test Conditions
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10)
2.4 1.2 6.6 2.1
3.2 1.6 9.0 3.0
mA mA mA mA
DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency 5 MHz logic signal frequency 5 MHz logic signal frequency
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10) IIA, IIB, IIC, ICTRL1, ICTRL2, IDISABLE VIH VIL VOAH, VOBH, VOCH VOAL, VOBL, VOCL -10
2.2 1.8 4.5 3.5 +0.01
2.8 2.4 5.7 4.3 +10
mA mA mA mA A
DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency 5 MHz logic signal frequency 5 MHz logic signal frequency 0 VIA, VIB, VIC VDD1 or VDD2, 0 VCTRL1, VCTRL2 VDD1 or VDD2, 0 VDISABLE VDD1
Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages SWITCHING SPECIFICATIONS ADuM131xARW Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 5 Pulse Width Distortion, |tPLH - tPHL|5 Propagation Delay Skew 6 Channel-to-Channel Matching 7 ADuM131xBRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels
2.0 0.8 VDD1, VDD2 - 0.1 VDD1, VDD2 - 0.4 5.0 4.8 0.0 0.2
0.1 0.4
V V V V V V
IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 4 mA, VIx = VIxL
PW tPHL, tPLH PWD tPSK tPSKCD/OD PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 10 20 30 5 1 20
1000 100 40 50 50 100 50 5 30 5 6
ns Mbps ns ns ns ns ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
Rev. F | Page 3 of 20
ADuM1310/ADUM1311
Parameter For All Models Output Rise/Fall Time (10% to 90%) Common-Mode Transient Immunity at Logic High Output 8 Common-Mode Transient Immunity at Logic Low Output Refresh Rate Input Enable Time 9 Input Disable Time9 Input Supply Current per Channel, Quiescent 10 Output Supply Current per Channel, Quiescent10 Input Dynamic Supply Current per Channel 11 Output Dynamic Supply Current per Channel11
1 2
Symbol tR/tF |CMH|
Min
Typ 2.5 35
Max
Unit ns kV/s
Test Conditions CL = 15 pF, CMOS signal levels VIx = VDD1/VDD2, VCM = 1000 V, transient magnitude = 800 V VIx = 0 V, VCM = 1000 V, transient magnitude = 800 V VIA, VIB, VIC = 0 V or VDD1 VIA, VIB, VIC = 0 V or VDD1
25
|CML| fr tENABLE tDISABLE IDDI (Q) IDDO (Q) IDDI (D) IDDO (D)
25
35 1.2 2.0 5.0 0.73 0.53
kV/s Mbps s s mA mA mA/ Mbps mA/ Mbps
0.50 0.38 0.12 0.04
All voltages are relative to their respective ground. The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 6 through Figure 8 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 9 through Figure 12 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM1310/ADUM1311 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed. 4 The maximum data rate is the fastest data rate at which the specified pulse width distortion is guaranteed. 5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 6 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. 7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range over which the common mode is slewed. 9 Input enable time is the duration from when VDISABLE is set low until the output states are guaranteed to match the input states in the absence of any input data logic transitions. If an input data logic transition within a given channel does occur within this time interval, the output of that channel reaches the correct state within the much shorter duration, as determined by the propagation delay specifications within this data sheet. Input disable time is the duration from when VDISABLE is set high until the output states are guaranteed to reach their programmed output levels, as determined by the CTRL2 logic state (see Table 12). 10 IDDx (Q) is the quiescent current drawn from the corresponding supply by a single channel. To calculate the total quiescent current, an additional inaccessible channel in the same orientation as Channel A must be included to account for the total current consumed. 11 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 6 through Figure 8 for information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current for a given data rate.
Rev. F | Page 4 of 20
ADuM1310/ADUM1311
ELECTRICAL CHARACTERISTICS--3 V OPERATION 1
2.7 V VDD1 3.6 V, 2.7 V VDD2 3.6 V; all min/max specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25C, VDD1 = VDD2 = 3.0 V. Table 2.
Parameter DC SPECIFICATIONS ADuM1310, Total Supply Current, Three Channels 2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW Grade Only) VDD1 Supply Current VDD2 Supply Current ADUM1311, Total Supply Current, Three Channels2 DC to 2 Mbps VDD1 Supply Current VDD2 Supply Current 10 Mbps (BRW Grade Only) VDD1 Supply Current VDD2 Supply Current For All Models Input Currents Symbol Min Typ Max Unit Test Conditions
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10)
1.2 0.8 3.4 1.1
1.6 1.0 4.9 1.3
mA mA mA mA
DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency 5 MHz logic signal frequency 5 MHz logic signal frequency
IDD1 (Q) IDD2 (Q) IDD1 (10) IDD2 (10) IIA, IIB, IIC, ICTRL1, ICTRL2, IDISABLE -10
1.0 0.9 2.5 1.9 +0.01
1.6 1.4 3.5 2.6 +10
mA
DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency 5 MHz logic signal frequency 5 MHz logic signal frequency 0 VIA, VIB, VIC VDD1 or VDD2, 0 VCTRL1, VCTRL2 VDD1 or VDD2, 0 VDISABLE VDD1
mA
A
Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages SWITCHING SPECIFICATIONS ADuM131xARW Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 5 Pulse Width Distortion, |tPLH - tPHL|5 Propagation Delay Skew 6 Channel-to-Channel Matching 7 ADuM131xBRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7
VIH 1.6 VIL VOAH, VOBH, VOCH VDD1, VDD2 - 0.1 3.0 VDD1, VDD2 - 0.4 2.8 VOAL, VOBL, VOCL 0.0 0.2
0.4
0.1 0.4
V V V V V V
IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 4 mA, VIx = VIxL
PW tPHL, tPLH PWD tPSK tPSKCD/OD PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 10 20 30 5 1 20
1000 100 40 50 50 100 50 5 30 5 6
ns Mbps ns ns ns ns ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
Rev. F | Page 5 of 20
ADuM1310/ADUM1311
Parameter For All Models Output Rise/Fall Time (10% to 90%) Common-Mode Transient Immunity at Logic High Output 8 Common-Mode Transient Immunity at Logic Low Output8 Refresh Rate Input Enable Time 9 Input Disable Time9 Input Supply Current per Channel, Quiescent 10 Output Supply Current per Channel, Quiescent10 Input Dynamic Supply Current per Channel 11 Output Dynamic Supply Current per Channel11
1 2
Symbol tR/tF |CMH| |CML| fr tENABLE tDISABLE IDDI (Q) IDDO (Q) IDDI (D) IDDO (D)
Min
Typ 2.5 35 35 1.1 2.0 5.0 0.25 0.19 0.07 0.02
Max
Unit ns kV/s kV/s Mbps s s mA mA mA/ Mbps mA/ Mbps
Test Conditions CL = 15 pF, CMOS signal levels VIx = VDD1/VDD2, VCM = 1000 V, transient magnitude = 800 V VIx = 0 V, VCM = 1000 V, transient magnitude = 800 V VIA, VIB, VIC = 0 V or VDD1 VIA, VIB, VIC = 0 V or VDD1
25 25
0.38 0.33
All voltages are relative to their respective ground. The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 6 through Figure 8 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 9 through Figure 12 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM1310/ADUM1311 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed. 4 The maximum data rate is the fastest data rate at which the specified pulse width distortion is guaranteed. 5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 6 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. 7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range over which the common mode is slewed. 9 Input enable time is the duration from when VDISABLE is set low until the output states are guaranteed to match the input states in the absence of any input data logic transitions. If an input data logic transition within a given channel does occur within this time interval, the output of that channel reaches the correct state within the much shorter duration, as determined by the propagation delay specifications within this data sheet. Input disable time is the duration from when VDISABLE is set high until the output states are guaranteed to reach their programmed output levels, as determined by the CTRL2 logic state (See Table 12). 10 IDDx (Q) is the quiescent current drawn from the corresponding supply by a single channel. To calculate the total quiescent current, an additional inaccessible channel in the same orientation as Channel A must be included to account for the total current consumed. 11 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 6 through Figure 8 for information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current for a given data rate.
Rev. F | Page 6 of 20
ADuM1310/ADUM1311
ELECTRICAL CHARACTERISTICS--MIXED 5 V/3 V OR 3 V/5 V OPERATION 1
5 V/3 V operation: 4.5 V VDD1 5.5 V, 2.7 V VDD2 3.6 V; 3 V/5 V operation: 2.7 V VDD1 3.6 V, 4.5 V VDD2 5.5 V; all min/max specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25C; VDD1 = 3.0 V, VDD2 = 5 V or VDD1 = 5 V, VDD2 = 3.0 V. Table 3.
Parameter DC SPECIFICATIONS ADuM1310, Total Supply Current, Three Channels 2 DC to 2 Mbps VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 10 Mbps (BRW Grade Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation ADUM1311, Total Supply Current, Three Channels2 DC to 2 Mbps VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 10 Mbps (BRW Grade Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation For All Models Input Currents Symbol Min Typ Max Unit Test Conditions
IDD1 (Q) 2.4 1.2 IDD2 (Q) 0.8 1.2 IDD1 (10) 6.5 3.4 IDD2 (10) 1.1 1.9 1.3 2.2 mA mA 5 MHz logic signal frequency 5 MHz logic signal frequency 8.2 4.9 mA mA 5 MHz logic signal frequency 5 MHz logic signal frequency 1.0 1.6 mA mA DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency 3.2 1.6 mA mA DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency
IDD1 (Q) 2.2 1.0 IDD2 (Q) 0.9 1.8 IDD1 (10) 4.5 2.5 IDD2 (10) 1.9 3.5 IIA, IIB, IIC, ICTRL1, -10 ICTRL2, IDISABLE VIH 2.0 1.6 VIL 0.8 0.4 VOAH, VOBH, VOCH VDD1, VDD2 - 0.1 VDD1, VDD2 VDD1, VDD2 - 0.4 VDD1, VDD2 - 0.2 VOAL, VOBL, VOCL 0.0 0.1 0.2 0.4
Rev. F | Page 7 of 20
2.8 1.6 1.4 2.4
mA mA mA mA
DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency DC to 1 MHz logic signal frequency
5.7 3.5 2.6 4.3 +10
mA mA mA mA A
5 MHz logic signal frequency 5 MHz logic signal frequency 5 MHz logic signal frequency 5 MHz logic signal frequency 0 VIA, VIB, VIC VDD1 or VDD2, 0 VCTRL1, VCTRL2 VDD1 or VDD2, 0 VDISABLE VDD1
+0.01
Logic High Input Threshold VDDx = 5 V Operation VDDx = 3 V Operation Logic Low Input Threshold VDDx = 5 V Operation VDDx = 3 V Operation Logic High Output Voltages Logic Low Output Voltages
V V V V V V V V
IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 4 mA, VIx = VIxL
ADuM1310/ADUM1311
Parameter SWITCHING SPECIFICATIONS ADuM131xARW Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 5 Pulse Width Distortion, |tPLH - tPHL|5 Propagation Delay Skew 6 Channel-to-Channel Matching 7 ADuM131xBRW Minimum Pulse Width3 Maximum Data Rate4 Propagation Delay5 Pulse Width Distortion, |tPLH - tPHL|5 Change vs. Temperature Propagation Delay Skew6 Channel-to-Channel Matching, Codirectional Channels7 Channel-to-Channel Matching, Opposing-Directional Channels7 For All Models Output Rise/Fall Time (10% to 90%) 5 V/3 V Operation 3 V/5 V Operation Common-Mode Transient Immunity at Logic High Output 8 Common-Mode Transient Immunity at Logic Low Output8 Refresh Rate 5 V/3 V Operation 3 V/5 V Operation Input Enable Time 9 Input Disable Time9 Input Supply Current per Channel, Quiescent 10 VDDx = 5 V Operation VDDx = 3 V Operation Output Supply Current per Channel, Quiescent10 VDDx = 5 V Operation VDDx = 3 V Operation Input Dynamic Supply Current per Channel 11 VDDx = 5 V Operation VDDx = 3 V Operation Symbol Min Typ Max Unit Test Conditions
PW tPHL, tPLH PWD tPSK tPSKCD/OD PW tPHL, tPLH PWD tPSK tPSKCD tPSKOD 10 20 5 1 25
1000 100 40 50 50 100 60 5 30 5 6
ns Mbps ns ns ns ns ns Mbps ns ns ps/C ns ns ns
CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels CL = 15 pF, CMOS signal levels
tR/tF 2.5 2.5 35 35 ns ns kV/s kV/s
CL = 15 pF, CMOS signal levels
|CMH| |CML| fr
25 25
VIx = VDD1/VDD2, VCM = 1000 V, transient magnitude = 800 V VIx = 0 V, VCM = 1000 V, transient magnitude = 800 V
1.2 1.1 tENABLE tDISABLE 2.0 5.0
Mbps Mbps s s
VIA, VIB, VIC, VID = 0 V or VDD1 VIA, VIB, VIC, VID = 0 V or VDD1
IDDI (Q) IDDI (Q)
0.50 0.25
0.73 0.38
mA mA
IDDO (Q) IDDO (Q) IDDI (D)
0.38 0.19
0.53 0.33
mA mA
0.12 0.07
mA/ Mbps mA/ Mbps
Rev. F | Page 8 of 20
ADuM1310/ADUM1311
Parameter Output Dynamic Supply Current per Channel VDDx = 5 V Operation VDDx = 3 V Operation
1 2
Symbol IDDI (D)
Min
Typ
Max
Unit
Test Conditions
0.04 0.02
mA/ Mbps mA/ Mbps
All voltages are relative to their respective ground. The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 6 through Figure 8 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 9 through Figure 12 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM1310/ADUM1311 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed. 4 The maximum data rate is the fastest data rate at which the specified pulse width distortion is guaranteed. 5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 6 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. 7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient magnitude is the range over which the common mode is slewed. 9 Input enable time is the duration from when VDISABLE is set low until the output states are guaranteed to match the input states in the absence of any input data logic transitions. If an input data logic transition within a given channel does occur within this time interval, the output of that channel reaches the correct state within the much shorter duration, as determined by the propagation delay specifications within this data sheet. Input disable time is the duration from when VDISABLE is set high until the output states are guaranteed to reach their programmed output levels, as determined by the CTRL2 logic state (See Table 12). 10 IDDx (Q) is the quiescent current drawn from the corresponding supply by a single channel. To calculate the total quiescent current, an additional inaccessible channel in the same orientation as Channel A must be included to account for the total current consumed. 11 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 6 through Figure 8 for information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current for a given data rate.
Rev. F | Page 9 of 20
ADuM1310/ADUM1311
PACKAGE CHARACTERISTICS
Table 4.
Parameter Resistance (Input-to-Output) 1 Capacitance (Input-to-Output)1 Input Capacitance 2 IC Junction-to-Case Thermal Resistance Side 1 Side 2
1
Symbol RI-O CI-O CI
Min
Typ 1012 2.2 4.0
Max
Unit pF pF
Test Conditions f = 1 MHz Thermocouple located at center of package underside
JCI JCO
33 28
C/W C/W
Device considered a 2-terminal device; Pin 1, Pin 2, Pin 3, Pin 4, Pin 5, Pin 6, Pin 7, and Pin 8 shorted together and Pin 9, Pin 10, Pin 11, Pin 12, Pin 13, Pin 14, Pin 15, and Pin 16 shorted together. 2 Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
The ADuM131x have been approved by the organizations listed in Table 5. Table 5.
UL 1 Recognized under 1577 component recognition program Single/basic insulation, 2500 V rms isolation voltage CSA Approved under CSA Component Acceptance Notice #5A Reinforced insulation per CSA 60950-103 and IEC 60950-1, 400 V rms maximum working voltage VDE 2 Certified according to DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 Basic insulation, 560 V peak
File E214100
1 2
File 205078
Complies with DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01, DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000 Reinforced insulation, 560 V peak File 2471900-4880-0001
In accordance with UL 1577, each ADuM131x is proof tested by applying an insulation test voltage 3000 V rms for 1 sec (current leakage detection limit = 5 A). In accordance with DIN EN 60747-5-2, each ADuM131x is proof tested by applying an insulation test voltage 1050 V peak for 1 sec (partial discharge detection limit = 5 pC). The * marking branded on the component designates DIN EN 60747-5-2 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter Rated Dielectric Insulation Voltage Minimum External Air Gap (Clearance) Minimum External Tracking (Creepage) Minimum Internal Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group Symbol Value 2500 L(I01) 7.7 min L(I02) Unit Conditions V rms 1 minute duration mm Measured from input terminals to output terminals, shortest distance through air 8.1 min mm Measured from input terminals to output terminals, shortest distance path along body 0.017 min mm Insulation distance through insulation >175 V DIN IEC 112/VDE 0303 Part 1 IIIa Material Group (DIN VDE 0110, 1/89, Table 1)
CTI
Rev. F | Page 10 of 20
ADuM1310/ADUM1311
DIN EN 60747-5-2 (VDE 0884 PART 2) INSULATION CHARACTERISTICS
The ADuM131x isolators are suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by protective circuits. The * marking on packages denotes DIN EN 60747-5-2 approval. Table 7.
Description Installation Classification per DIN VDE 0110 For Rated Mains Voltage 150 V rms For Rated Mains Voltage 300 V rms For Rated Mains Voltage 400 V rms Climatic Classification Pollution Degree (DIN VDE 0110, Table 1) Maximum Working Insulation Voltage Input-to-Output Test Voltage, Method B1 Input-to-Output Test Voltage, Method A After Environmental Tests Subgroup 1 After Input and/or Safety Test Subgroup 2 and Subgroup 3 Highest Allowable Overvoltage Safety-Limiting Values Case Temperature Side 1 Current Side 2 Current Insulation Resistance at TS Conditions Symbol Characteristic I to IV I to III I to II 40/105/21 2 560 1050 Unit
VIORM x 1.875 = VPR, 100% production test, tm = 1 sec, partial discharge < 5 pC VIORM x 1.6 = VPR, tm = 60 sec, partial discharge < 5 pC VIORM x 1.2 = VPR, tm = 60 sec, partial discharge < 5 pC Transient overvoltage, tTR = 10 sec Maximum value allowed in the event of a failure; see Figure 5
VIORM VPR VPR
V peak V peak
896 672 VTR 4000
V peak V peak V peak
VIO = 500 V
TS IS1 IS2 RS
150 265 335 >109
C mA mA
RECOMMENDED OPERATING CONDITIONS
Table 8.
Parameter Operating Temperature Supply Voltages 1 Input Signal Rise and Fall Times
1
Symbol TA VDD1, VDD 2
Min -40 2.7
Max +105 5.5 1.0
Unit C V ms
All voltages are relative to their respective ground. See the DC Correctness and Magnetic Field Immunity section for information on immunity to external magnetic fields.
Rev. F | Page 11 of 20
ADuM1310/ADUM1311 ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25C, unless otherwise noted. Table 9.
Parameter Storage Temperature (TST) Ambient Operating Temperature (TA) Supply Voltages (VDD1, VDD2)1 Input Voltage (VIA, VIB, VIC, VDISABLE, VCTRL1, VCTRL2)1, 2 Output Voltage (VOA, VOB, VOC)1, 2 Average Output Current per Pin3 Side 1 (IO1) Side 2 (IO2) Common-Mode Transients 4
1 2
Rating -65C to +150C -40C to +105C -0.5 V to +7.0 V -0.5 V to VDDI + 0.5 V -0.5 V to VDDO + 0.5 V -18 mA to +18 mA -22 mA to +22 mA -100 kV/s to +100 kV/s
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ESD CAUTION
All voltages are relative to their respective ground. VDDI and VDDO refer to the supply voltages on the input and output sides of a given channel, respectively. See the PC Board Layout section. 3 See Figure 5 for maximum rated current values for various temperatures. 4 Refers to common-mode transients across the insulation barrier. Commonmode transients exceeding the Absolute Maximum Ratings may cause latchup or permanent damage.
Rev. F | Page 12 of 20
ADuM1310/ADUM1311 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VDD1 1 *GND1 2 VIA 3 VIB 4
16 VDD2 15 GND2* 14 VOA
13 VOB TOP VIEW VIC 5 (Not to Scale) 12 VOC
ADuM1310
NC 6 DISABLE 7 *GND1 8
11 NC 10 CTRL2
04904-003
9
GND2*
NC = NO CONNECT
*Pin 2 and Pin 8 are internally connected, and connecting both to GN 1 is recommended. D Pin 9 and Pin 15 are internally connected, and connecting both to GN 2 is recommended. D
Figure 3. ADuM1310 Pin Configuration
Table 10. ADuM1310 Pin Function Descriptions
Pin No. 1 2 3 4 5 6 7 Mnemonic VDD1 GND1 VIA VIB VIC NC DISABLE Description Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Ground 1. Ground reference for isolator Side 1. Logic Input A. Logic Input B. Logic Input C. No Connection. Input Disable. Disables the isolator inputs and halts the dc refresh circuits. Outputs take on the logic state determined by CTRL2. Ground 1. Ground reference for isolator Side 1. Ground 2. Ground reference for isolator Side 2. Default Output Control. Controls the logic state the outputs take on when the input power is off. VOA, VOB, and VOC outputs are high when CTRL2 is high or disconnected and VDD1 is off. VOA, VOB, and VOC outputs are low when CTRL2 is low and VDD1 is off. When VDD1 power is on, this pin has no effect. No Connection. Logic Output C. Logic Output B. Logic Output A. Ground 2. Ground reference for isolator Side 2. Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
8 9 10
GND1 GND2 CTRL2
11 12 13 14 15 16
NC VOC VOB VOA GND2 VDD2
Rev. F | Page 13 of 20
ADuM1310/ADUM1311
VDD1 1 *GND1 2 VIA 3 VIB 4
16 VDD2 15 GND2* 14 VOA
13 VOB TOP VIEW VOC 5 (Not to Scale) 12 VIC
ADUM1311
NC 6 CTRL1 7 *GND1 8
11 NC 10 CTRL2
04904-004
9
GND2*
NC = NO CONNECT
*Pin 2 and Pin 8 are internally connected, and connecting both to GN 1 is recommended. D Pin 9 and Pin 15 are internally connected, and connecting both to GN 2 is recommended. D
Figure 4. ADUM1311 Pin Configuration
Table 11. ADUM1311 Pin Function Descriptions
Pin No. 1 2 3 4 5 6 7 Mnemonic VDD1 GND1 VIA VIB VOC NC CTRL1 Description Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Ground 1. Ground reference for isolator Side 1. Logic Input A. Logic Input B. Logic Output C. No Connection. Default Output Control. Controls the logic state the outputs take on when the input power is off. VOC output is high when CTRL1 is high or disconnected and VDD2 is off. VOC output is low when CTRL1 is low and VDD2 is off. When VDD2 power is on, this pin has no effect. Ground 1. Ground reference for isolator Side 1. Ground 2. Ground reference for isolator Side 2. Default Output Control. Controls the logic state the outputs take on when the input power is off. VOA and VOB outputs are high when CTRL2 is high or disconnected and VDD1 is off. VOA and VOB outputs are low when CTRL2 is low and VDD1 is off. When VDD1 power is on, this pin has no effect. No Connection. Logic Input C. Logic Output B. Logic Output A. Ground 2. Ground reference for isolator Side 2. Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
8 9 10
GND1 GND2 CTRL2
11 12 13 14 15 16
NC VIC VOB VOA GND2 VDD2
Rev. F | Page 14 of 20
ADuM1310/ADUM1311
Table 12. Truth Table (Positive Logic)
VIx Input 1 H L X X X CTRLx Input 2 X X H or NC L H or NC VDISABLE State 3 L or NC L or NC H H X VDDI State 4 Powered Powered X X Unpowered VDDO State 5 Powered Powered Powered Powered Powered VOx Output H L H L H Notes Normal operation, data is high. Normal operation, data is low. Inputs disabled. Outputs are in the default state as determined by CTRLx. Inputs disabled. Outputs are in the default state as determined by CTRLx. Input unpowered. Outputs are in the default state as determined by CTRLx. Outputs return to input state within 1 s of VDDI power restoration. See the pin function tables (Table 10 and Table 11) for more details. Input unpowered. Outputs are in the default state as determined by CTRLx. Outputs return to input state within 1 s of VDDI power restoration. See the pin function tables (Table 10 and Table 11) for more details. Output unpowered. Output pins are in high impedance state. Outputs return to input state within 1 s of VDDO power restoration. See the pin function tables (Table 10 and Table 11) for more details.
X
L
X
Unpowered Powered
L
X
X
X
Powered
Unpowered Z
1 2
VIx and VOx refer to the input and output signals of a given channel (A, B, or C). CTRLx refers to the default output control signal on the input side of a given channel (A, B, or C). 3 Available only on the ADuM1310. 4 VDDI refers to the power supply on the input side of a given channel (A, B, or C). 5 VDDO refers to the power supply on the output side of a given channel (A, B, or C).
Rev. F | Page 15 of 20
ADuM1310/ADUM1311 TYPICAL PERFORMANCE CHARACTERISTICS
350 1.4 300 1.2
SAFETY-LIMITING CURRENT (mA)
250 SIDE 2 200
CURRENT/CHANNE L (mA)
1.0
5V
0.8
150 SIDE 1 100 50 0 0 50 100 150 CASE TEMPERATURE (C)
0.6
3V
0.4 0.2 0 0 2 4 6 DATA RATE (Mbps) 8 10
04904-005
200
Figure 5. Thermal Derating Curve, Dependence of Safety-Limiting Values with Case Temperature per DIN EN 60747-5-2
2.0
Figure 8. Typical Supply Current per Output Channel vs. Data Rate for 5 V and 3 V Operation (15 pF Output Load)
6
5V
CURRENT/CHANNE L (mA)
1.5
5V 4
1.0 3V
CURRENT (mA)
3V 2
0.5
04904-006 04904-009
0 0 2 4 6 DATA RATE (Mbps) 8 10
0 0 2 4 6 DATA RATE (Mbps) 8 10
Figure 6. Typical Supply Current per Input Channel vs. Data Rate for 5 V and 3 V Operation
1.0 0.9 0.8
Figure 9. Typical ADuM1310 VDD1 Supply Current vs. Data Rate for 5 V and 3 V Operation
6
CURRENT/CHANNE L (mA)
0.7 0.6 0.5 0.4 0.3 0.2
5V
4
CURRENT (mA)
5V 2 3V
3V
04904-007
0.1 0 0 2 4 6 DATA RATE (Mbps) 8 10
0 0 2 4 6 DATA RATE (Mbps) 8 10
Figure 7. Typical Supply Current per Output Channel vs. Data Rate for 5 V and 3 V Operation (No Output Load)
Figure 10. Typical ADuM1310 VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation (No Output Load)
Rev. F | Page 16 of 20
04904-010
04904-008
ADuM1310/ADUM1311
6 6
4
5V
4
CURRENT (mA)
CURRENT (mA)
5v
3V 2
2
3v
0 0 2 4 6 DATA RATE (Mbps) 8 10
0 0 2 4 6 DATA RATE (Mbps) 8 10
Figure 11. Typical ADUM1311 VDD1 Supply Current vs. Data Rate for 5 V and 3 V Operation (No Output Load)
Figure 12. Typical ADUM1311 VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation (No Output Load)
Rev. F | Page 17 of 20
04904-012
04904-011
ADuM1310/ADUM1311 APPLICATION INFORMATION
PC BOARD LAYOUT
The ADuM131x digital isolator requires no external interface circuitry for the logic interfaces. Power supply bypassing is strongly recommended at the input and output supply pins (see Figure 13). Bypass capacitors are most conveniently connected between Pin 1 and Pin 2 for VDD1 and between Pin 15 and Pin 16 for VDD2. The capacitor value should be between 0.01 F and 0.1 F. The total lead length between both ends of the capacitor and the input power supply pin should not exceed 20 mm. Bypassing between Pin 1 and Pin 8 and between Pin 9 and Pin 16 should be considered, unless both of the ground pins on each package are connected together close to the package.
VDD1 GND1 VIA VIB VIC/VOC NC CTRL1 GND1 VDD2 GND2 VOA VOB VOC/VIC NC
04904-013
Channel-to-channel matching refers to the maximum amount the propagation delay differs between channels within a single ADuM131x component. Propagation delay skew refers to the maximum amount the propagation delay differs between multiple ADuM131x components operating under the same conditions.
DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY
Positive and negative logic transitions at the isolator input cause narrow (~1 ns) pulses to be sent to the decoder via the transformer. The decoder is bistable and is therefore either set or reset by the pulses, indicating input logic transitions. In the absence of logic transitions at the input for more than 2 s, a periodic set of refresh pulses indicative of the correct input state are sent to ensure dc correctness at the output. If the decoder receives no internal pulses of more than about 5 s, the input side is assumed to be unpowered or nonfunctional, in which case the isolator output is forced to a default state (see Table 12) by the watchdog timer circuit. The magnetic field immunity of the ADuM131x is determined by the changing magnetic field, which induces a voltage in the transformer's receiving coil large enough to either falsely set or reset the decoder. The following analysis defines the conditions under which this can occur. The 3 V operating condition of the ADuM131x is examined because it represents the most susceptible mode of operation. The pulses at the transformer output have an amplitude greater than 1.0 V. The decoder has a sensing threshold at about 0.5 V, thus establishing a 0.5 V margin in which induced voltages can be tolerated. The voltage induced across the receiving coil is given by V = (-d/dt)rn2; n = 1, 2, ... , N where: is magnetic flux density (gauss). N is the number of turns in the receiving coil. rn is the radius of the nth turn in the receiving coil (cm). Given the geometry of the receiving coil in the ADuM131x and an imposed requirement that the induced voltage be, at most, 50% of the 0.5 V margin at the decoder, a maximum allowable magnetic field at a given frequency can be calculated. The result is shown in Figure 15.
CTRL2 GND2
Figure 13. Recommended Printed Circuit Board Layout
In applications involving high common-mode transients, care should be taken to ensure that board coupling across the isolation barrier is minimized. Furthermore, the board layout should be designed such that any coupling that does occur equally affects all pins on a given component side. Failure to ensure this can cause voltage differentials between pins exceeding the device's absolute maximum ratings, thereby leading to latch-up or permanent damage.
PROPAGATION DELAY RELATED PARAMETERS
Propagation delay is a parameter that describes the time it takes a logic signal to propagate through a component. The input-tooutput propagation delay time for a high-to-low transition may differ from the propagation delay time of a low-to-high transition.
INPUT (VIx) 50%
tPLH
OUTPUT (VOx)
tPHL
50%
04904-014
Figure 14. Propagation Delay Parameters
Pulse width distortion is the maximum difference between these two propagation delay values and is an indication of how accurately the input signal's timing is preserved.
Rev. F | Page 18 of 20
ADuM1310/ADUM1311
100
for Various Current-to-ADuM131x Spacings
MAXIMUM ALLOWABLE MAGNETIC FLUX DENSITY (kguass)
10
1
Note that at combinations of strong magnetic field and high frequency, any loops formed by printed circuit board traces can induce error voltages sufficient to trigger succeeding circuitry. Care should be taken in the layout of such traces to avoid this possibility.
0.1
POWER CONSUMPTION
The supply current at a given channel of the ADuM131x isolator is a function of the supply voltage, the channel's data rate, and the channel's output load. For each input channel, the supply current is given by IDDI = IDDI (Q) IDDI = IDDI (D) x (2f - fr) + IDDI (Q) IDDO = IDDO (Q)
-3
0.01
04904-015
0.001 1k
10k 100k 1M 10M MAGNETIC FIELD FREQUENCY (Hz)
100M
f 0.5 fr f > 0.5 fr f 0.5 fr
Figure 15. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the maximum allowable magnetic field of 0.2 kgauss induces a voltage of 0.25 V at the receiving coil. This is about 50% of the sensing threshold and does not cause a faulty output transition. Similarly, if such an event were to occur during a transmitted pulse (and was of the worst-case polarity), it would reduce the received pulse from >1.0 V to 0.75 V--still well above the 0.5 V sensing threshold of the decoder. The preceding magnetic flux density values correspond to specific current magnitudes at given distances from the ADuM131x transformers. Figure 16 expresses these allowable current magnitudes as a function of frequency for selected distances. As shown, the ADuM131x is extremely immune and can be affected only by extremely large currents operated at high frequency very close to the component. For the 1 MHz example noted, one would have to place a 0.5 kA current 5 mm away from the ADuM131x to affect the component's operation.
1000
For each output channel, the supply current is given by IDDO = (IDDO (D) + (0.5 x 10 ) x CL x VDDO) x (2f - fr) + IDDO (Q) f > 0.5 fr where: IDDI (D), IDDO (D) are the input and output dynamic supply currents per channel (mA/Mbps). CL is the output load capacitance (pF). VDDO is the output supply voltage (V). f is the input logic signal frequency (MHz); it is half of the input data rate expressed in units of Mbps. fr is the input stage refresh rate (Mbps). IDDI (Q), IDDO (Q) are the specified input and output quiescent supply currents (mA). To calculate the total VDD1 and VDD2 supply current, the supply currents for each input and output channel corresponding to VDD1 and VDD2 are calculated and totaled. The ADuM131x contains an internal data channel that is not available to the user. This channel is in the same orientation as Channel A and consumes quiescent current. The contribution of this channel must be included in the total quiescent current calculation for each supply. Figure 6 and Figure 7 provide per-channel supply currents as a function of data rate for an unloaded output condition. Figure 8 provides per-channel supply current as a function of data rate for a 15 pF output condition. Figure 9 through Figure 12 provide total VDD1 and VDD2 supply current as a function of data rate for ADuM1310/ADUM1311 channel configurations.
MAXIMUM ALLOWABLE CURRENT (kA)
DISTANCE = 1m 100
10 DISTANCE = 100mm 1 DISTANCE = 5mm 0.1
04904-016
0.01 1k 10k 100k 1M 10M 100M MAGNETIC FIELD FREQUENCY (Hz)
Figure 16. Maximum Allowable Current
Rev. F | Page 19 of 20
ADuM1310/ADUM1311 OUTLINE DIMENSIONS
10.50 (0.4134) 10.10 (0.3976)
16 9
7.60 (0.2992) 7.40 (0.2913)
1 8
10.65 (0.4193) 10.00 (0.3937)
1.27 (0.0500) BSC 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.51 (0.0201) 0.31 (0.0122)
2.65 (0.1043) 2.35 (0.0925)
0.75 (0.0295) x 45 0.25 (0.0098)
SEATING PLANE
8 0.33 (0.0130) 0 0.20 (0.0079)
1.27 (0.0500) 0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-013-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 17. 16-Lead Standard Small Outline Package [SOIC_W] Wide Body (RW-16) Dimension shown in millimeters and (inches)
ORDERING GUIDE
Model Number Number Maximum Maximum Maximum of Inputs, of Inputs, Data Rate Propagation Pulse Width Temperature VDD1 Side VDD2 Side (Mbps) Delay, 5 V (ns) Distortion (ns) Range Package Description Package Option
ADuM1310ARWZ 1 ADuM1310ARWZ-RL1 ADuM1310BRWZ1 ADuM1310BRWZ-RL1 ADUM1311ARWZ1 ADUM1311ARWZ-RL1 ADUM1311BRWZ1 ADUM1311BRWZ-RL1
1
3 3 3 3 2 2 2 2
0 0 0 0 1 1 1 1
1 1 10 10 1 1 10 10
100 100 50 50 100 100 50 50
40 40 5 5 40 40 5 5
-40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +105C -40C to +105C
16-Lead SOIC_W 16-Lead SOIC_W, 13" Reel 16-Lead SOIC_W 16-Lead SOIC_W, 13" Reel 16-Lead SOIC_W 16-Lead SOIC_W, 13" Reel 16-Lead SOIC_W 16-Lead SOIC_W, 13" Reel
RW-16 RW-16 RW-16 RW-16 RW-16 RW-16 RW-16 RW-16
Z = Pb-free part.
(c)2004-2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04904-0-1/07(F)
T T
Rev. F | Page 20 of 20

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