DESCRIPTION
The DG441, DG442 monolithic quad analog switches are designed to provide high speed, low error switching of analog and audio signals. The DG441 has a normally closed function. The DG442 has a normally open function.
Combining low on-resistance (50 , typ.) with high speed (tON 150 ns, typ.), the DG441, DG442 are ideally suited for upgrading DG201A/202 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 DG441, DG442 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.

FEATURES
• Halogen-free according to IEC 61249-2-21 Definition
• Low on-resistance: 50Ω 
• Low leakage: 80 pA
• Low power consumption: 0.2 mW
• Fast switching action - tON: 150 ns
• Low charge injection - Q: - 1 pC
• DG201A/DG202 upgrades
• TTL/CMOS-compatible logic
• Single supply capability
• Compliant to RoHS Directive 2002/95/EC

BENEFITS
• Less signal errors and distortion
• Reduced power supply requirements
• Faster throughput
• Improved reliability
• Reduced pedestal errors
• Simplifies retrofit
• Simple interfacing

APPLICATIONS
• Audio switching
• Battery powered systems
• Data acquisition
• Hi-Rel systems
• Sample-and-hold circuits
• Communication systems
• Automatic test equipment
• Medical instruments