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FEATURES

? Low on-resistance: 50 ?

? Low leakage: 80 pA

? Low power consumption: 22 nW

? Fast switching action - tON: 120 ns

? Low charge injection

? DG211, DG212 upgrades

? TTL/CMOS logic compatible

BENEFITS

? Low signal errors and distortion

? Reduced power supply requirements

? Faster throughput

? Improved reliability

? Reduced pedestal errors

? Simple interfacing

? Wide supply ranges?

- Single supply: +5 V to 36 V?

- Dual supplies: ± 5 V to ± 20 V

APPLICATIONS

? Audio switching

? Battery powered systems

? Data acquisition

? Sample-and-hold circuits

? Telecommunication systems

? Automatic test equipment

? Single supply circuits

? Hard disk drives

DESCRIPTION

The DG444, DG445 monolithic quad analog switches are

designed to provide high speed, low error switching of

analog signals. The DG444 has a normally closed function.

The DG445 has a normally open function. Combining low

power (22 nW, typ.) with high speed (tON: 120 ns, typ.), the

DG444, DG445 are ideally suited for upgrading DG211,

DG212 sockets. Charge injection has been minimized on the

drain for use in sample-and-hold circuits.

To achieve high-voltage ratings and superior switching

performance, the DG444, DG445 are built on Vishay

Siliconix’s high-voltage silicon-gate process. An epitaxial

layer prevents latchup.

Each switch conducts equally well in both directions when

on, and blocks input voltages to the supply levels when off.