1

Dual-In-Line, SOIC-8 and MSOP-8

S

D

NC

V -

GND

IN

V+

2

3

4

8

7

6

5

Top View

1

Dual-In-Line, SOIC-8 and MSOP-8

D

V-

GND

IN

V+

2

3

4

8

7

6

5

Top View

DG417B

DG419B

DG417B/418B/419B

Vishay Siliconix

New Product

Document Number: 72107

S-31538—Rev. B, 11-Aug-03

www.vishay.com

1

Precision CMOS Analog Switches

FEATURES

BENEFITS

APPLICATIONS

D "15-V Analog Signal Range

D TTL and CMOS Compatible

D MSOP-8 and SOIC-8 Packaging

D Wide Dynamic Range

D Low Signal Errors and Distortion

D Break-Before-Make Switching Action

D Simple Interfacing

D Reduced Board Space

D Improved Reliability

D Precision Test Equipment

D Precision Instrumentation

D Battery Powered Systems

D Sample-and-Hold Circuits

D Military Radios

D Guidance and Control Systems

D Hard Disk Drives

DESCRIPTION

The DG417B/418B/419B monolithic CMOS analog switches

were designed to provide high performance switching of

analog signals. Combining low power, low leakages, high

speed, low on-resistance and small physical size, the DG417B

series

is

ideally

suited

for

portable

and

battery

powered industrial and military applications requiring high

performance and efficient use of board space.

To achieve high-voltage ratings and superior switching

performance, the DG417B series is built on Vishay Siliconix’s

high voltage silicon gate (HVSG) process. Break-before-make

is guaranteed for the DG419B, which is an SPDT

configuration. An epitaxial layer prevents latchup.

Each switch conducts equally well in both directions when on,

and blocks up to the power supply level when off.

The DG417B and DG418B respond to opposite control logic

levels as shown in the Truth Table.

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

TRUTH TABLE

Logic

DG417B

DG418B

0

ON

OFF

1

OFF

ON

Logic “0” =

v 0.8 V, Logic “1” = w 2.4 V

TRUTH TABLEDG419B

Logic

0

ON

OFF

1

OFF

ON

Logic “0” =

v 0.8 V, Logic “1” = w 2.4 V