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Top View

DG201B

Dual-In-Line, SOIC and TSSOP

DG201B/202B

Vishay Siliconix

Document Number: 70037

S-52433—Rev. G, 06-Sep-99

www.vishay.com

S FaxBack 408-970-5600

4-1

Improved Quad CMOS Analog Switches

FEATURES

BENEFITS

APPLICATIONS

D "22-V Supply Voltage Rating

D TTL and CMOS Compatible Logic

D Single Supply Operation Possible

D Extended Temperature Range

D Low Glitching—Q: 1 pC

D Wide Analog Signal Range

D Simple Logic Interface

D Higher Accuracy

D Minimum Transients

D Reduced Power Consumption

D Superior to DG201A/202

D Space Savings (TSSOP)

D Industrial Instrumentation

D Test Equipment

D Communications Systems

D Disk Drives

D Computer Peripherals

D Portable Instruments

D Sample-and-Hold Circuits

DESCRIPTION

The DG201B/202B analog switches are highly improved

versions of the industry-standard DG201A/202. 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.)

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

TRUTH TABLE

Logic

DG201B

DG202B

0

ON

OFF

1

OFF

ON

Logic “0”

v 0.8 V

Logic “1”

w 2.4 V