NC

NC

NC

NC

V–

V+

NC

GND

Plastic Dip

1

2

3

4

5

6

7

14

13

12

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9

8

Top View

DG381B

DG381B/384B/387B/390B

Vishay Siliconix

Document Number: 71404

S-02968—Rev. A, 22-Jan-01

www.vishay.com

1

CMOS Analog Switches

FEATURES

BENEFITS

APPLICATIONS

D "15-V Input Range

D Single Supply Operation

D Pin and Function Compatible with the

JFET DG180 Family

D Full Rail-to-Rail Analog Signal Range

D Minimizes Signal Error

D Low Power Dissipation

D Low Level Switching Circuits

D Programmable Gain Amplifiers

D Portable and Battery Powered

Sytems

DESCRIPTION

The DG381B–DG390B series of monolithic CMOS analog

switches was designed for applications in instrumentation,

communications, and process control. This series is suited for

applications

requiring

fast

switching

and

nearly

flat

on-resistance over the entire voltage range.

Designed on Vishay Siliconix’ PLUS-40 CMOS process,

these devices achieve low power consumption (3.5 mW

typical) and excellent on/off switch performance. These

switches are ideal for battery powered applications, without

sacrificing switching speed. Break-before-make switching

action is guaranteed, and an epitaxial layer prevents latchup.

Single supply operation is allowed by connecting the V– rail to

0 V.

Each switch conducts equally well in both directions when on,

and blocks up to the supply voltage when off. These switches

are CMOS and quasi TTL logic compatible.

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

TRUTH TABLE

Logic

Switch

0

ON

1

OFF

Logic “0”

v 0.8 V

Logic “1”

w 4 V