FUNCTIONAL BLOCK DIAGRAM

S1A

D1

S1B

IN1

S2A

D2

S2B

IN2

ADG436

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

Dual SPDT Switch

ADG436

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 1998

FEATURES

44 V Supply Maximum Ratings

Low On Resistance (12

Typ)

Low

Max)

Max)

Low Power Dissipation

Fast Switching Times

Low Leakage Currents (5 nA Max)

Low Charge Injection (10 pC)

Break-Before-Make Switching Action

APPLICATIONS

Audio and Video Switching

Battery Powered Systems

Test Equipment

Communications Systems

GENERAL DESCRIPTION

The ADG436 is a monolithic CMOS device comprising two

independently selectable SPDT switches. It is designed on an

LC

gives high switching speed and low on resistance.

The on resistance profile is very flat over the full analog input

range ensuring good linearity and low distortion when switching

audio signals. High switching speed also makes the part suitable

for video signal switching. CMOS construction ensures ultralow

power dissipation making the part ideally suited for portable and

battery powered instruments.

Each switch conducts equally well in both directions when ON

and has an input signal range which extends to the power sup-

plies. In the OFF condition, signal levels up to the supplies are

blocked. All switches exhibit break-before-make switching ac-

tion for use in multiplexer applications. Inherent in the design is

low charge injection for minimum transients when switching the

digital inputs.

PRODUCT HIGHLIGHTS

1. Extended Signal Range

The ADG436 is fabricated on an enhanced LC

cess, giving an increased signal range which extends to the

supply rails.

2. Low Power Dissipation

4. Single Supply Operation

For applications where the analog signal is unipolar, the

ADG436 can be operated from a single rail power supply.