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DG183/184/185
High-Speed Drivers with Dual DPST JFET Switches
Features
D Constant On-Resistance Over Entire Analog Range D Low Leakage D Low Crosstalk D Break-Before-Make Switching D Rad Hardness
Benefits
D D D D D Low Distortion Eliminates Large Signal Errors High Precision Improved Channel Isolation Eliminates Inadvertent Shorting Between Channels D Fault Protection
Applications
D D D D D D Audio Switching Precision Switching Video Switching Video Routing Sample/Hold Aerospace
Description
The DG183/184/185 are precision dual double-pole, single-throw (DPST) analog switches designed to provide accurate switching of video and audio signals. This series is ideally suited for applications requiring a constant on-resistance over the entire analog range. The major difference in the devices is the on-resistance (DG183--10 W, DG184--30 W, DG185--75 W). Reduced errors are achieved through low leakage current (ID(on) < 2 nA). Applications which benefit from the flat JFET on-resistance include audio switching, video switching, and data acquisition. To achieve fast and accurate switch performance, each device comprises four n-channel JFET transistors and a TTL compatible bipolar driver. In the on state, each switch conducts current equally well in either direction. In the off condition, the switches will block up to 20 V peak-to-peak, with feedthrough of less than -60 dB at 10 MHz.
Functional Block Diagram and Pin Configuration
D1 NC D3 S3 S4 D4 NC D2
1 2 3 4 5 6 7 8 16 15 14
S1 IN1 V- VR VL V+ IN2 S2 S4 D4 D2 S2 IN2 V+ VL
1 2 3 4 6 7 14 13 12
S3 D3 D1 S1 IN1 V-* VR
Dual-In-Line
Top View
13 12 11 10 9
Flat Package 11
9 8
5 Top View 10
Refer to JAN38510 Information, Military Section *Common to Substrate and Case
Truth Table Logic
0 1 Logic "0" v 0.8 V 0 Logic "1" w 2.0 V 20 Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70032.
Switch
OFF ON
Siliconix S-52895--Rev. D, 16-Jun-97
1
DG183/184/185
Ordering Information
Temp Range
-25 to 85_C to 85 _C
Package
16-Pin Sidebraze
Part Number
DG183BP DG184BP DG183AP/883 DG184AP/883, JM38510/11103BEA DG185AP/883, JM38510/11104BEA
16-Pin Sidebraze -55 to 125_C 14-Pin Flat Pack
JM38510/11103BXA JM38510/11104BXA
Absolute Maximum Ratings
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V V+ to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 V VD to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 V VD to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "22 V VL to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V VL to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VL to VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VIN to VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VR to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 V VR to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V Current (S or D) DG183 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA Current (S or D) DG184, DG185 . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Current (All Other Pins) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150_C Power Dissipationa 16-Pin Sidebrazeb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW 14-Pin Flat Packc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW Notes: a. All leads welded or soldered to PC Board. b. Derate 12 mW/_C above 75_C c. Derate 10 mW/_C above 75_C
Schematic Diagram (Typical Channel)
VL V+
IN
S D
VR
V-
Figure 1.
2
Siliconix S-52895--Rev. D, 16-Jun-97
DG183/184/185
Specificationsa for DG183
Test Conditions Unless Otherwise Specified
A Suffix
-55 to 125_C
B Suffix
-25 to 85_C
Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance
Symbol
V+ = 15 V V = -15 V VL = 5 V 15 V, V, V- VR = 0 V, VIN = 0.8 V or 2 Vf
Tempb
Typc
Mind
Maxd
Mind
Maxd
Unit
VANALOG rDS(on) IS = -10 mA, VD = -7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V IS(off) VS = "7.5 V, VD = #7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V ID(off) VS = "7.5 V, VD = #7.5 V ID(on) IDSS VD = VS = "7.5 V 2 ms Pulse Duration
Full Room Full Room Hot Room Hot Room Hot Room Hot Room Hot Room 7.5 0.05 0.05 0.04 0.03 -0.1 300
-7.5
15 10 20 10 1000 10 1000 10 1000 10 1000
-7.5
15 15 25 15 300 15 300 15 300 15 300
V W
Source Off Leakage C Lk Current
nA
Drain Off Leakage C Lk Current Channel On Leakage Current Saturation Drain Current
-2 -200
-10 -200 mA
Digital Input
Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL VIN = 5 V VIN = 0 V Room Hot Full <0.01 10 20 -250 -250 10 20
mA
-30
Dynamic Characteristics
Turn-On Time Turn-Off Time Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Off Isolation ton toff CS(off) CD(off) CD(on) OIRR f = 1 MHz VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W See Switching Time Test Circuit Room Room Room Room Room Room 240 140 21 17 17 >55 dB pF 400 200 600 220 ns
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current I+ I- IL IR VIN = 0 V or 5 V V, Room Room Room Room 0.6 -2.7 3.1 -1 -2 -5 4.5 -2 1.5 -5 4.5 mA 1.5
Notes: a. Refer to PROCESS OPTION FLOWCHART . b. Room = 25_C, Full = as determined by the operating temperature suffix. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. e. Guaranteed by design, not subject to production test. f. VIN = input voltage to perform proper function.
Siliconix S-52895--Rev. D, 16-Jun-97
3
DG183/184/185
Specificationsa for DG184
Test Conditions Unless Otherwise Specified
A Suffix -55 to 125_C Typc Mind Maxd
B Suffix -25 to 85_C Mind Maxd Unit
Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance
Symbol
V+ = 15 V V- = -15 V, VL = 5 V 15 V V, V VR = 0 V, VIN = 0.8 V or 2 Vf Tempb
VANALOG rDS(on) IS = -10 mA, VD = -7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V IS(off) VS = "7.5 V, VD = #7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V ID(off) VS = "7.5 V, VD = #7.5 V ID(on) VD = VS = "7.5 V
Full Room Full Room Hot Room Hot Room Hot Room Hot Room Hot 22 0.06 0.05 0.4 0.3 -0.02
-7.5
15 30 60 1 100 1 100 1 100 1 100
-7.5
15 50 75 5 100 5 100 5 100 5 100
V W
Source Off Leakage C Lk Current
nA
Drain Off Leakage C Lk Current
Channel On Leakage Current
-2 -200
-10 -200
Digital Input
Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL VIN = 5 V VIN = 0 V Room Hot Full <0.01 10 20 -250 -250 10 20
mA
-30
Dynamic Characteristics
Turn-On Time Turn-Off Time Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Off Isolation ton toff CS(off) CD(off) CD(on) OIRR f = 1 MHz VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W Room See Switching Time Test Circuit Room Room Room Room Room 95 9 6 14 >50 dB pF 130 150 85 150 180 ns
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current I+ I- IL IR VIN = 0 V, or 5 V Room Room Room Room 0.6 -2.7 3.1 -1 -2 -5.5 4.5 -2 3 -5.5 mA 4.5 3
Notes: a. Refer to PROCESS OPTION FLOWCHART . b. Room = 25_C, Full = as determined by the operating temperature suffix. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. e. Guaranteed by design, not subject to production test. f. VIN = input voltage to perform proper function.
4
Siliconix S-52895--Rev. D, 16-Jun-97
DG183/184/185
Specificationsa for DG185
Test Conditions Unless Otherwise Specified
A Suffix
-55 to 125_C
B Suffix
-25 to 85_C
Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance
Symbol
V+ V = 15 V, V- = -15 V, VL = 5 V VV 15 V VR = 0 V, VIN = 0.8 V or 2 Vf
Tempb
Typc
Mind
Maxd
Mind
Maxd
Unit
VANALOG rDS(on) IS = -10 mA, VD = -7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V IS(off) VS = "10 V, VD = #10 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V ID(off) VS = "10 V, VD = #10 V ID(on) VD = VS = "10 V
Full Room Full Room Hot Room Hot Room Hot Room Hot Room Hot 35 0.05 0.07 0.4 0.3 -0.03
-10
15 75 150 1 100 1 100 1 100 1 100
-10
15 100 150 5 100 5 100 5 100 5 100
V W
Source Off Leakage C Lk Current
nA
Drain Off Leakage C Lk Current
Channel On Leakage Current
-2 -200
-10 -200
Digital Input
Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL VIN = 5 V VIN = 0 V Room Hot Full <0.01 10 20 -250 -250 10 20
mA
-30
Dynamic Characteristics
Turn-On Time Turn-Off Time Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Off Isolation ton toff CS(off) CD(off) CD(on) OIRR f = 1 MHz VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W Room See Switching Time Test Circuit Room Room Room Room Room 100 9 6 14 >50 dB pF 130 150 120 250 300 ns
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current I+ I- IL IR VIN = 0 V, or 5 V Room Room Room Room 0.6 -2.7 3.1 -1 -2 -5.5 4.5 -2 3 -5.5 4.5 mA 3
Notes: a. Refer to PROCESS OPTION FLOWCHART . b. Room = 25_C, Full = as determined by the operating temperature suffix. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. e. Guaranteed by design, not subject to production test. f. VIN = input voltage to perform proper function.
Siliconix S-52895--Rev. D, 16-Jun-97
5
DG183/184/185
Typical Characteristics
5
Supply Current vs. Temperature
100
IIN vs. VIN and Temperature
VINL = 0 VINH = 5 V
4 (mA)
80
IL , I-, I+, I
-I- 2 -IR 1 I+
IIN (mA)
R
3
IL
60
-IINL
40
20 IINH 0 -55 -35 -15
0 -55 -35 -15
5
25
45
65
85 105 125
5
25
45
65
85
105 125
Temperature (_C) 100
Temperature (_C) 230 210 190 t ON , t OFF (ns) 170 150 130 110 tOFF
rDS(on) vs. Temperature
DG185
Switching Time vs. VD and Temperature (DG183)
VD = 7.5 V VD = -7.5 V tON
rDS(on) ( W )
DG184 10 DG183 VD= -7.5 V IS = -10 mA
1 -50 -25 0 25 50 75 100 125 Temperature (_C)
90 -55 -35
-15
5
25
45
65
85
105 125
Temperature (_C)
Leakage vs. Temperature (DG183)
100 V+ = 10 V V- = -20 V VL = 5 V VR = 0 t ON , t OFF (ns) 10 I S , I D (nA)
Switching Time vs. VD and Temperature (DG184/185)
130 120 110 100 90 80 70 tOFF VD = 7.5 V VD = -7.5 V tON
IS(off) 1 ID(on) ID(off) 0.1 25 45 65 85 105 125 Temperature (_C)
60 50 -55 -35
-15
5
25
45
65
85
105 125
Temperature (_C)
6
Siliconix S-52895--Rev. D, 16-Jun-97
DG183/184/185
Typical Characteristics (Cont'd)
100
ID(off) vs. Temperature (DG184/185)
V+ = 10 V, V- = -20 V VD = -10 V, VS = 10 V
30
Capacitance vs. VD or VS (DG183)
f = 1 MHz
26 10 C S, D (pF) I D (nA) 22 CS(off) CD(on)
B Suffix 1 A Suffix
18
14
CD(off)
0.1 25 45 65 85 Temperature (_C) 105 125
10 -8 -4 0 4 8 VD or VS - Drain or Source Voltage (V)
20 18 16 14 C S, D (pF)
Capacitance vs. VD or VS (DG184/185)
VINL = 0.8 V VINH = 2 V f = 1 MHz
Off Isolation vs. Frequency
100 90
CD(on)
80 70 ISO (dB) 60 50 40 30 20 V+ = 15 V, V- = -15 V VR = 0, VL = 5 V RL = 75 W VIN w 220 mVRMS 105 106 DG183
DG184/185
12 10 8 6 4 2 0 -10 Capacitance is measured from test terminal to common. -8 -6 -4 -2 0 2 4 6 8 10 CS(off) CD(off)
10 0
107
108
VD or VS - Drain or Source Voltage (V)
f - Frequency (Hz)
Siliconix S-52895--Rev. D, 16-Jun-97
7
DG183/184/185
Test Circuits
Feedthrough due to charge injection may result in spikes at the leading and trailing edge of the output waveform. +5 V +15 V Logic Input VO1 VO2 3V IN GND V- RL2 CL2 Switch Output -3 V RL1 CL1 0V tON tOFF 0V 90% 90% 3V 50% 0V tr <10 ns tf <10 ns
VL VS1 VS2 S1 S2
V+ D1 D2
tON: VS = 3 V tOFF: VS = -3 V
-15 V CL (includes fixture and stray capacitance) V OUT + V S RL xR )r L DS(on)
Figure 2. Switching Time
Application Hintsa
V+ Positive Supply Voltage (V)
15b DG183 DG184 10 12 15b DG185 10 12
Switch
V- Negative Supply Voltage (V)
-15 -20 -12 -15 -20 -12
VL Logic Supply Voltage (V)
5 5 5 5 5 5
VR Reference Supply Voltage (V)
GND GND GND GND GND GND
VIN Logic Input Voltage VINH(min)/VINL(max) (V)
2.0/0.8 2.0/0.8 2.0/0.8 2.0/0.8 2.0/0.8 2.0/0.8
VS Analog Voltage Range (V)
-7.5 to 15 -12.5 to 10 -4.5 to 12 -10 to 15 -15 to 10 -7 to 12
Notes: a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing. b. Electrical Parameter Chart based on V+ = 15 V, VL = 5 V, VR = GND.
8
Siliconix S-52895--Rev. D, 16-Jun-97

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