FEATURES

• Low on-resistance: 50 Ω

• 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.