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DG2788/DG2789
Vishay Siliconix
Low Voltage, Low On-Resistance, Dual DPDT/Quad SPDT Analog Switch
DESCRIPTION
The DG2788/DG2789 are monolithic CMOS analog switching products designed for high performance switching of analog signals. Combining low power, high speed, low onresistance and small physical size, the DG2788/DG2789 are ideal for portable and battery powered applications requiring high performance and efficient use of board space. The DG2788/DG2789 are built on Vishay Siliconix's low voltage process. An epitaxial layer prevents latchup. Breakbefore-make is guaranteed. The switch conducts equally well in both directions when on, and blocks up to the power supply level when off. The DG2788 is configured as a dual Double Pole Double Throw switches while the DG2789 is configured as a Quad Single Pole Double Throw. The DG2789 has one control pin for all four SPDT switches and also has an enable pin that can turn all switches off. The DG2788 and DG2789 comes in a small miniQFN-16 lead package (2.6 x 1.8 x 0.75 mm). As a committed partner to the community and the environment, Vishay Siliconix manufactures this product with the lead (Pb)-free device terminations and is 100 % RoHS compliant.
FEATURES * Low Voltage Operation (1.65 V to 4.3 V)
* Low On-Resistance - rON: 0.4 Typ. at 2.7 V * Fast Switching: tON = 47 ns tOFF = 15 ns * miniQFN-16 Package * Latch-Up Current > 300 mA (JESD78)
RoHS
COMPLIANT
BENEFITS * Reduced Power Consumption
* High Accuracy * Reduce Board Space * TTL/1.8 V Logic Compatible * High Bandwidth
APPLICATIONS * Cellular Phones
* Speaker Headset Switching * Audio and Video Signal Routing * PCMCIA Cards * Battery Operated Systems
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG2788 miniQFN-16
COM1 NO1 V+ NC4 16 15 14 13
DG2789 miniQFN-16
COM1 NO1 V+ NC4 16 15 14 13
TRUTH TABLE DG2788
Logic 0 NC1, 2, 3 and 4 ON OFF NO1, 2, 3 and 4 OFF ON
NC1 IN1, IN2 NO2 COM2
1 2 3 4
12 COM4 11 NO4 10 IN3, IN4 9 NC3
NC1
1
12 COM4 11 NO4 10 9 EN NC3
1
IN1 2 NO2 3 COM2 4
TRUTH TABLE DG2789
EN Logic IN Logic 0 1 x NC1, 2, 3 and 4 NO1, 2, 3 and 4 ON OFF OFF OFF ON OFF 0 0 1
5
6
7
8
5
6
7
8
NC2 GND NO3 COM3 Top View
NC2 GND NO3 COM3 Top View
Axx Pin 1 Device Marking: Axx for DG2788 Bxx for DG2789 xx = Date/Lot Traceability Code Note: Pin 1 has long lead
ORDERING INFORMATION
Temp Range - 40 to 85 C Package miniQFN-16 Part Number DG2788DN-T1-E4 DG2789DN-T1-E4
Document Number: 73863 S-70327-Rev. D, 26-Feb-07
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DG2788/DG2789
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS TA = 25 C, unless otherwise noted
Parameter IN, COM, NC, NOa Current (Any terminal except NO, NC or COM) Continuous Current (NO, NC, or COM) Peak Current (Pulsed at 1 ms, 10 % duty cycle) Storage Temperature (D Suffix) miniQFN-16 Package Solder Reflow Conditionsd Power Dissipation (Packages)b miniQFN-16c Reference to GND V+ Symbol Limit - 0.3 to 5.0 - 0.3 to (V+ + 0.3) 30 300 500 - 65 to 150 250 525 Unit V
mA
C mW
Notes: a. Signals on NC, NO, or COM or IN exceeding V+ will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads welded or soldered to PC Board. c. Derate 6.6 mW/C above 70 C d. Manual soldering with iron is not recommended for leadless components. The miniQFN-16 is a leadless package. The end of the lead terminal is exposed copper (not plated) as a result of the singulation process in manufacturing. A solder fillet at the exposed copper lip cannot be guaranteed and is not required to ensure adequate bottom side solder interconnection.
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Document Number: 73863 S-70327-Rev. D, 26-Feb-07
DG2788/DG2789
Vishay Siliconix
SPECIFICATIONS (V+ = 3 V)
Test Conditions Otherwise Unless Specified Parameter Analog Switch Analog Signal Ranged VNO, VNC, VCOM V+ = 2.7 V, VCOM = 0.5 V, INO, INC = 100 mA On-Resistance rON rON Flatness rON INO(off), INC(offF) ICOM(off) Channel-On Leakage Current Digital Control Input High Voltage Input Low Voltage Input Capacitance Input Current Dynamic Characteristics Turn-On Time Turn-Off Time Break-Before-Make Time Charge Injectiond Off-Isolationd Crosstalkd, f NO, NC Off Capacitanced Channel-On Capacitance Power Supply Power Supply Range Power Supply Current V+ I+ VIN = 0 or V+ Full 2.7 3.3 1.0 V A
d
Limits - 40 to 85 C Tempa Minb Typc Maxb Unit
Symbol
V+ = 3 V, 10 %, VIN = 0.5 or 1.4 Ve
Full Room Full
0 0.4 0.33
V+ 0.5 0.56 0.1 0.05 0.15
V
V+ = 2.7 V, VCOM = 1.5 V, INO, INC = 100 mA
rON Flatnessd rON Matchd
V+ = 2.7 V, VCOM = 0 to V+, INO, INC = 100 mA
Room Room Room Full Room Full Room Full Full Full Full -1 - 10 -1 - 10 -1 - 10 1.4
Switch Off Leakage Current
V+ = 3.3 V, VNO, VNC = 0.3 V/3.0 V, VCOM = 3.0 V/0.3 V V+ = 3.3 V, VNO, VNC = VCOM = 0.3 V/3.0 V
1 10 1 10 1 10 nA
ICOM(on)
VINH VINL Cin IINL or IINH VIN = 0 or V+
0.5 6 -1 47 15 1 87 - 69 - 49 - 106 - 96 1 72 75 43 45
V pF A
Full Romm Full
tON tOFF td QINJ OIRR XTALK CNO(off) CNC(off) CNO(on) CNC(on) f = 1 MHz CL = 1 nF, VGEN = 0 V, RGEN = 0 RL = 50 , CL = 5 pF, f = 100 kHz RL = 50 , CL = 5 pF, f = 1 MHz RL = 50 , CL = 5 pF, f = 100 kHz RL = 50 , CL = 5 pF, f = 1 MHz VNO or VNC = 1.5 V, RL = 50 , CL = 35 pF
Room Full Full Room
ns
pC
Room
dB
Room Room Room Room
81 81 186 186 pF
Document Number: 73863 S-70327-Rev. D, 26-Feb-07
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DG2788/DG2789
Vishay Siliconix
SPECIFICATIONS (V+ = 4.3 V)
Test Conditions Otherwise Unless Specified Parameter Analog Switch Analog Signal Ranged VNO, VNC, VCOM V+ = 4.3 V, VCOM = 0.9 V, INO, INC = 100 mA On-Resistance rON rON Flatness rON INO(off), INC(offF) ICOM(off) ICOM(on) V+ = 4.3 V, VCOM = 2.5 V, INO, INC = 100 mA Full Room Full rON Flatnessd rON Matchd Switch Off Leakage Currentd Channel-On Leakage Currentd Digital Control Input High Voltage Input Low Voltage Input Capacitance Input Current Dynamic Characteristics Charge Injectiond NO, NC Off Capacitanced Channel-On Capacitance Power Supply Power Supply Range Power Supply Current V+ I+ VIN = 0 or V+ Full 4.3 1.0 V A
d
Limits - 40 to 85 C Tempa Minb Typc Maxb Unit
Symbol
V+ = 4.3 V, VIN = 0.5 or 1.6 Ve
0 0.32 0.27
V+ 0.45 0.5 0.1 0.03 0.15
V
V+ = 4.3 V, VCOM = 0 to V+, INO, INC = 100 mA
Room Room Room Full Room Full Room Full Full Full Full -10 - 100 - 10 - 100 - 10 - 100 1.6
V+ = 4.3 V, VNO, VNC = 0.3 V / 4.0 V, VCOM = 4.0 V / 0.3 V
10 100 10 100 10 100 nA
V+ = 4.3 V, VNO, VNC = VCOM = 3.0 V / 4.0 V
VINH VINL Cin IINL or IINH QINJ CNO(off) CNC(off) CNO(on) CNC(on) f = 1 MHz VIN = 0 or V+ CL = 1 nF, VGEN = 0 V, RGEN = 0
0.5 6 -1 105 79 79 183 183 1
V pF A pC
Full Room Room Room Room Room
pF
Notes: a. Room = 25 C, Full = as determined by the operating suffix. b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. c. Typical values are for design aid only, not guaranteed nor subject to production testing. d. Guarantee by design, not subjected to production test. e. VIN = input voltage to perform proper function. f. Crosstalk measured between channels.
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
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Document Number: 73863 S-70327-Rev. D, 26-Feb-07
DG2788/DG2789
Vishay Siliconix
TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted
1.25 V+ = 1.65 V 1.00 r ON - On-Resistance () V+ = 1.8 V V+ = 2.3 V 0.75 V+ = 2.7 V V+ = 3.0 V V+ = 3.6 V T = 25 C IS = 100 mA NC Switch r ON - On-Resistance () 0.7 IS = 100 mA V+ = 3 V
0.6
85 C 25 C - 40 C
0.5
0.4
0.50
0.3
0.25
0.2 V+ = 4.3 V 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
0.00 0.0
0.1 0.0
0.6
1.2
1.8
2.4
3.0
VCOM - Analog Voltage (V)
VCOM - Analog Voltage (V)
rON vs. VCOM and Supply Voltage
0.6 IS = 100 mA V+ = 4.3 V 85 C 25 C I+ - Supply Current (pA) - 40 C 0.4 1000 10000
rON vs. Analog Voltage and Temperature
0.5 r ON - On-Resistance ()
V+ = 3 V VIN = 0 V
0.3
0.2
100
0.1
0.0 0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10 - 60
- 40
- 20
VCOM - Analog Voltage (V)
0 20 40 Temperature (C)
60
80
100
rON vs. Analog Voltage and Temperature
100 m V+ = 3.0 V 10 m I + - S u p p ly C u r r e n t ( A ) 1m Leakage Current (pA) 100 10 1 100 n 10 n 1n 10 1 - 60 100 1000
Supply Current vs. Temperature
V+ = 3.3 V NC
ICOM(on)
INC(off)
10
ICOM(off)
100
1K
10 K
100 K
1M
10 M
- 40
- 20
0
20
40
60
80
100
Input Switching Frequency (Hz)
Temperature (C)
Supply Current vs. Input Switching Frequency
Leakage Current vs. Temperature
Document Number: 73863 S-70327-Rev. D, 26-Feb-07
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DG2788/DG2789
Vishay Siliconix
TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted
800 600 Leakage Current (pA) 400 200 0 - 200 ICOM(on) - 400 - 600 0.00 V+ = 3.3 V ICOM(off) INO(off), IINC(off) 80 70 60 tON V+ = 3.0 V 50 40 30 t OFF V+ = 1.8 V 20 t OFF V+ = 3.0 V 10 0 - 40 - 20 0 20 40 60 80 Temperature (C) t OFF V+ = 3.3 V tON V+ = 3.3 V tON V+ = 1.8 V
0.50
1.00
1.50
2.00
2.50
3.00
VCOM, VNO, VNC - Analog Voltage (V)
Leakage vs. Analog Voltage
10 0 - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90 - 100 - 110 - 120 100k 1M 10M Frequency (Hz) V+ = 3 V R L = 50 100M 1G XTALK OIRR - Switching Threshold (V) - 10 LOSS, OIRR, XTALK (dB) LOSS 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 1.0 2.00
tON, t OFF - Switching Time (ns)
Switching Time vs. Temperature
VT
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Insertion Loss, Off-Isolation Crosstalk vs. Frequency
200 160 Q - Charge Injection (pC) 120 80 V+ = 1.8 V 40 0 - 40 - 80 - 120 0.0 V+ = 4.3 V
V+ - Supply Voltage (V)
Switching Threshold vs. Supply Voltage
V+ = 3 V
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
VCOM - Analog Voltage (V)
Charge Injection vs. Analog Voltage
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Document Number: 73863 S-70327-Rev. D, 26-Feb-07
DG2788/DG2789
Vishay Siliconix
TEST CIRCUITS
V+ Logic Input V+ Switch Input Logic Input NO or NC IN GND 0V CL (includes fixture and stray capacitance) VOUT = VCOM Logic "1" = Switch On Logic input waveforms inverted for switches that have the opposite logic sense. RL 50 CL 35 pF COM Switch Output VOUT 0.9 x V OUT Switch Output 0V tON tOFF
VINH 50 % VINL
tr < 5 ns tf < 5 ns
(R L
RL +R
ON
)
Figure 1. Switching Time
V+ Logic Input COM VO RL 50 CL 35 pF VINH VINL tr < 5 ns tf < 5 ns
V+ VNO VNC NO NC IN GND
VNC = V NO VO Switch 0V Output
90 %
tD
tD
CL (includes fixture and stray capacitance)
Figure 2. Break-Before-Make Interval
V+
Rgen +
V+ NC or NO IN COM VOUT VOUT IN CL = 1 nF GND On
VOUT
Vgen
VIN = 0 - V+
Off Q = VOUT x CL
On
IN depends on switch configuration: input polarity determined by sense of switch.
Figure 3. Charge Injection
Document Number: 73863 S-70327-Rev. D, 26-Feb-07
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DG2788/DG2789
Vishay Siliconix
TEST CIRCUITS
V+ 10 nF
V+ 10 nF
V+ NC or NO IN 0 V, 2.4 V
V+ COM Meter
COM
COM
IN 0 V, 2.4 V
RL
GND
NC or NO GND
HP4192A Impedance Analyzer or Equivalent f = 1 MHz
Analyzer
Off Isolation = 20 log V NO / NC
VCOM
Figure 4. Off-Isolation
Figure 5. Channel Off/On Capacitance
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see http://www.vishay.com/ppg?73863.
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Document Number: 73863 S-70327-Rev. D, 26-Feb-07
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000 Revision: 18-Jul-08
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