Vishay Siliconix

DG201B/202B

Document Number: 70037

S-71155–Rev. H, 11-Jun-07

www.vishay.com

1

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

BENEFITS

•

Simple Logic Interface

•

Higher Accuracy

•

Minimum Transients

•

Reduced Power Consumption

•

Superior to DG201A/202

APPLICATIONS

•

Test Equipment

•

Communications Systems

•

Disk Drives

•

Computer Peripherals

•

Portable Instruments

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

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