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.