dg308a| Datasheet

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DG308A/DG309
Vishay Siliconix

Quad Monolithic SPST CMOS Analog Switches

DESCRIPTION
Featuring low on-resistance (60 ) and fast switching (130 ns), the DG308A is supplied in the "normally open" configuration while DG309 is supplied "normally closed". Input thresholds are high voltage CMOS compatible. Designed with the Vishay Siliconix PLUS-40 CMOS process to combine low power dissipation with a high breakdown voltage rating of 44 V, each switch conducts equally well in both directions when on, and blocks up to the supply voltage when off. An epitaxial layer prevents latch up. The DG308B/309B upgrades are recommended for new designs.

FEATURES
15 V Analog Input Range Low On-Resistance: 60 Fast Switching: 130 ns Low Power Dissipation: 30 nW CMOS Logic Compatible
Pb-free Available

RoHS*
COMPLIANT

BENEFITS
Full Rail-to-Rail Analog Signal Range Low Signal Error Wide Dynamic Range Single or Dual Supply Capability Static Protected Logic Inputs Space Savings (TSSOP)

APPLICATIONS
Portable and Battery Powered Instrumentation Communication Systems Computer Peripherals High-Speed Multiplexing

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

DG308A
IN1 D1 S1 V GND S4 D4 IN4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN2 D2 S2 V+ NC S3 D3 IN3

For SPST Switches per Package

TRUTH TABLE
Logic 0 1 Logic "0" 3.5 V Logic "1" 11 V DG308A OFF ON DG309 ON OFF

Top View

* Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 70046 S-71155 Rev. F, 11-Jun-07 www.vishay.com 1

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dg308a DATASHEET