REV. A

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a

ADG733/ADG734

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

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

CMOS, 2.5

Low Voltage,

Triple/Quad SPDT Switches

FEATURES

1.8 V to 5.5 V Single Supply

2.5 V Dual Supply

2.5

On Resistance

0.5

On Resistance Flatness

100 pA Leakage Currents

19 ns Switching Times

Triple SPDT: ADG733

Quad SPDT: ADG734

Small TSSOP and QSOP Packages

Low Power Consumption

TTL/CMOS Compatible Inputs

APPLICATIONS

Data Acquisition Systems

Communication Systems

Relay Replacement

Audio and Video Switching

Battery Powered Systems

GENERAL DESCRIPTION

The ADG733 and ADG734 are low voltage, CMOS devices

comprising three independently selectable SPDT (single pole,

double throw) switches and four independently selectable SPDT

switches respectively.

Low power consumption and operating supply range of 1.8 V to

5.5 V and dual

±2.5 V make the ADG733 and ADG734 ideal for

battery powered, portable instruments. All channels exhibit

break-before-make switching action preventing momentary

shorting when switching channels. An

EN input on the ADG733 is

used to enable or disable the device. When disabled, all channels

are switched OFF.

These 2–1 multiplexers/SPDT switches are designed on an

enhanced submicron process that provides low power dissipation

yet gives high switching speed, very low on resistance, high signal

bandwidths, and low leakage currents. On resistance is in the

region of a few ohms, is closely matched between switches, and is

very flat over the full signal range. These parts can operate equally

well in either direction and have an input signal range that extends

to the supplies.

The ADG733 is available in small TSSOP and QSOP packages,

while the ADG734 is available in a small TSSOP package.

PRODUCT HIGHLIGHTS

1. Single/Dual Supply Operation. The ADG733 and ADG734 are

fully specified and guaranteed with 3 V and 5 V single supply

rails and

±2.5 V dual supply rails.

2. Low On Resistance (2.5

Ω typical)

3. Low Power Consumption (<0.01

µW)

4. Guaranteed Break-Before-Make Switching Action

FUNCTIONAL BLOCK DIAGRAMS

S1B

D1

S1A

A0

S2A

D2

S2B

S3B

D3

S3A

A1

ADG733

SWITCHES SHOWN FOR A “1” INPUT LOGIC

S1A

D1

S1B

IN1

IN2

S2B

D2

S2A

S3A

D3

S3B

IN3

IN4

S4B

D2

S4A

ADG734

EN

A2

LOGIC