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a

ADG749

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., 2000

CMOS Low Voltage

2.5

SPDT Switch In SC70 Package

FUNCTIONAL BLOCK DIAGRAM

IN

ADG749

S2

S1

D

SWITCHES SHOWN FOR

A LOGIC "1" INPUT

FEATURES

1.8 V to 5.5 V Single Supply

5

(Max) On Resistance

0.75

(Typ) On-Resistance Flatness

–3 dB Bandwidth >200 MHz

Rail-to-Rail Operation

6-Lead SC70 Package

Fast Switching Times

Typical Power Consumption (<0.01

W)

TTL/CMOS-Compatible

APPLICATIONS

Battery-Powered Systems

Communication Systems

Sample Hold Systems

Audio Signal Routing

Video Switching

Mechanical Reed Relay Replacement

GENERAL DESCRIPTION

The ADG749 is a monolithic CMOS SPDT switch. This switch

is designed on a submicron process that provides low power

dissipation yet gives high switching speed, low on resistance and

low leakage currents.

The ADG749 can operate from a single supply range of 1.8 V to

5.5 V, making it ideal for use in battery-powered instruments and

with the new generation of DACs and ADCs from Analog Devices.

Each switch of the ADG749 conducts equally well in both

directions when on. The ADG749 exhibits break-before-make

switching action.

Because of the advanced submicron process, –3 dB bandwidths

of greater than 200 MHz can be achieved.

The ADG749 is available in a 6-lead SC70 package.

PRODUCT HIGHLIGHTS

1. 1.8 V to 5.5 V Single Supply Operation. The ADG749

offers high performance, including low on resistance and

fast switching times, and is fully specified and guaranteed

with 3 V and 5 V supply rails.

Ω max at 5 V, 10 Ω max at 3 V). At 1.8 V

Ω over the temperature range.

Ω typ).

4. –3 dB Bandwidth >200 MHz.

5. Low Power Dissipation. CMOS construction ensures low

power dissipation.

7. Tiny 6-lead SC70 package.