Vishay Siliconix

DG201B, DG202B

Document Number: 70037

S11-0800-Rev. J, 25-Apr-11

www.vishay.com

1

This document is subject to change without notice.

Improved Quad CMOS Analog Switches

FEATURES

•

± 22 V supply voltage rating

•

TTL and CMOS compatible logic

•

•

•

Single supply operation possible

•

Extended temperature range

•

•

Low glitching - Q: 1 pC

•

Compliant to RoHS Directive 2002/95/EC

BENEFITS

•

Simple logic interface

•

Higher accuracy

•

Minimum transients

•

Reduced power consumption

•

Superior to DG201A, DG202

APPLICATIONS

•

Test equipment

•

Communications systems

•

Disk drives

•

Computer peripherals

•

Portable instruments

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.)

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

Logic “0”

0.8 V

Logic “1”

2.4 V

* Pb containing terminations are not RoHS compliant, exemptions may apply

V-

V+

GND

NC

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Top View

DG201B

Dual-In-Line, SOIC and TSSOP

TRUTH TABLE

Logic

DG201B

DG202B

0

ON

OFF

1OFF

ON

Available

Pb-free

RoHS*

COMPLIANT