DESCRIPTION

The DG201B, DG202B analog switches are highly improved versions of the industry-standard DG201A, DG202. These devices are fabricated in Vishay Siliconix’ proprietary silicon gate CMOS process, resulting in lower on-resistance, lower leakage, higher speed, and lower power consumption.

These quad single-pole single-throw switches are designed for a wide variety of applications in telecommunications, instrumentation, process control, computer peripherals, etc. An improved charge injection compensation design minimizes switching transients. The DG201B and DG202B can handle up to ± 22 V input signals, and have an improved continuous current rating of 30 mA. An epitaxial layer prevents latchup.

All devices feature true bi-directional performance in the on condition, and will block signals to the supply voltages in the off condition.

The DG201B is a normally closed switch and the DG202B is a normally open switch. (see Truth Table.)

FEATURES

• ± 22 V supply voltage rating

• TTL and CMOS compatible logic

• Low on-resistance - RDS(on): 45 Ω

• Low leakage - ID(on): 20 pA

• Single supply operation possible

• Extended temperature range

• Fast switching - tON: 120 ns

• Low glitching - Q: 1 pC

• Compliant to RoHS Directive 2002/95/EC

BENEFITS

• Wide analog signal range

• Simple logic interface

• Higher accuracy

• Minimum transients

• Reduced power consumption

• Superior to DG201A, DG202

• Space savings (TSSOP)

APPLICATIONS

• Industrial instrumentation

• Test equipment

• Communications systems

• Disk drives

• Computer peripherals

• Portable instruments

• Sample-and-hold circuits