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CMOS Analog Switches

(Obsolete for non-hermetic. Use DG304B Series as pin-for-pin replacements.)

Vishay Siliconix
CMOS Analog Switches
(Obsolete for non-hermetic. Use DG304B Series as pin-for-pin replacements.)
FEATURES
D D D D D D "15-V Input Range Fast Switching-tON: 110 ns Low rDS(on): 30 W Single Supply Operation CMOS Logic Levels Micropower: 30 nW
BENEFITS
APPLICATIONS
Full Rail-to-Rail Analog Signal Range D Low Level Switching Circuits Low Signal Error D Programmable Gain Amplifiers Wide Dynamic Range D Portable and Battery Powered Systems Low Power Dissipation
DESCRIPTION
Designed on the Vishay Siliconix PLUS-40 CMOS process to achieve low power consumption and excellent on / off switch performance, these switches are ideal for battery powered
Each switch conducts equally well in both directions when on, and blocks up to the supply voltage when off. These switches are CMOS input compatible.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line NC D1 NC S1 NC IN1 GND V+ D2 NC S1 S2 NC IN1 IN2 V- NC 2 D1
Metal Can V+ (Substrate and Case)
TRUTH TABLE
Logic
Switch
OFF ON
Logic "0" v 3.5 V Logic "1" w 11 V
Top View
Document Number: 71678 S-04302-Rev. A, 16-Jul-01
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FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line NC D1 NC S1 NC IN GND V+ D2 NC S2 NC NC V- NC IN S1 2 8 7 4 5 GND Top View Top View 6 V- D1 10 1 9 S2 D2
Metal Can V+ (Substrate and Case)
TRUTH TABLE
Logic
OFF ON Logic "0" v 3.5 V Logic "1" w 11 V
ON OFF
Dual-In-Line NC S3 D3 D1 S1 IN1 GND V+ S4 D4 D2 S2 IN2 V-
TRUTH TABLE
Logic
0 1 Logic "0" v 3.5 V Logic "1" w 11 V
Switch
OFF ON
Top View
Dual-In-Line NC S3 D3 D1 S1 IN1 GND V+ S4 D4 D2 S2 IN2 V- Four SPST Switches per Package 14 13 12 11 10 9 8
TRUTH TABLE
Logic
SW1, SW2 SW3, SW4
OFF ON Logic "0" v 3.5 V Logic "1" w 11 V ON OFF
Top View www.vishay.com Document Number: 71678 S-04302-Rev. A, 16-Jul-01
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ORDERING INFORMATION
Package
Part Number
ABSOLUTE MAXIMUM RATINGS
Document Number: 71678 S-04302-Rev. A, 16-Jul-01
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SPECIFICATIONSa
Test Conditions Unless Specified Parameter Analog Switch
Limits Tempb Minc Typd Maxc Unit
Symbol
Digital Control
Dynamic Characteristics
Power Supplies
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Document Number: 71678 S-04302-Rev. A, 16-Jul-01
Vishay Siliconix
rDS(on) vs. VD and " Power Supply
rDS(on) vs. VD and + Power Supply Voltage
r DS(on) Drain-Source On-Resistance ( -
r DS(on) Drain-Source On-Resistance ( - 5 10 15 20
0 -20 -15 -10 -5 0 VD - Drain Voltage (V)
0 0 5 10 VD - Drain Voltage (V) 15 20
Leakage Currents vs. Analog Voltage
10 10 9 0 ID(off) or IS(off) 8 7 -10 I S, I D (pA) ID(on) V T (V) 6 5 4 3 -30 2 -40 -15 -12 -9 -6 -3 0 3 6 9 12 15 1 0 VD or VS - Drain or Source Voltage (V)
Input Switching Threshold vs. V+ and V- Supply Voltages
V+, V- Positive & Negative Supplies (V)
Switching Time vs. Positive Supply Voltage
Switching Time vs. Negative Supply Voltage
160 tON 120
120 tOFF 80
40 0 5 10 15 V+ - Positive Supply Voltage (V)
40 0 -5 -10 -15 V- - Negative Supply Voltage (V)
Document Number: 71678 S-04302-Rev. A, 16-Jul-01
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Supply Currents vs. Toggle Frequency
6 I+, I- (mA)
0 1k 10 k 100 k 1M f - Frequency (Hz)
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V- VIN Level Shift / Drive V+ GND D
FIGURE 1.
TEST CIRCUITS
FIGURE 2. Switching Time
Document Number: 71678 S-04302-Rev. A, 16-Jul-01
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TEST CIRCUITS
-15 V CL (includes fixture and stray capacitance)
FIGURE 4. Charge Injection
APPLICATION HINTSa
V+ Positive Supply Voltage (V)
V- Negative Supply Voltage (V)
GND Voltage (V)
VIN Logic Input Voltage VINH(min) / VINL(max) (V)
VS or VD Analog Voltage Range (V)
-15 to 15 -20 to 20 0 to 15
Notes: a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing. Document Number: 71678 S-04302-Rev. A, 16-Jul-01 www.vishay.com
Vishay Siliconix
APPLICATIONS
+15 V 10 kW VIN 10 kW VOUT -15 V
+15 V 10 kW 100 kW
Binary Input 11 10 01 00
Gain 1 10 100 1000
DG304A
FIGURE 5. Low Power Binary to 10n Gain Low Frequency Amplifier
VIN1 VOUT VIN2
DG307A
180 kW
FIGURE 6. Low Power Non-Inverting Amplifier with Digitally Selectable Inputs and Gain
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Document Number: 71678 S-04302-Rev. A, 16-Jul-01
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Document Number: 91000 Revision: 18-Jul-08
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