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ADG821/ADG822/ADG823

<1

ΩCMOS 1.8 V to 5.5 V,

Dual SPST Switches

FEATURES

0.8

Max On Resistance @125 C

0.28

Max On Resistance Flatness @125 C

1.8 V to 5.5 V Single Supply

200 mA Current Carrying Capability

Automotive Temperature Range: –40 C to +125 C

Rail-to-Rail Operation

8-Lead MSOP Package

33 ns Switching Times

Typical Power Consumption (<0.01

W)

TTL/CMOS Compatible Inputs

Pin Compatible with ADG721/722/723

APPLICATIONS

Power Routing

Battery-Powered Systems

Communication Systems

Data Acquisition Systems

Audio and Video Signal Routing

Cellular Phones

Modems

PCMCIA Cards

Hard Drives

Relay Replacement

FUNCTIONAL BLOCK DIAGRAM

ADG821

IN1

D2

S2

S1

D1

IN2

ADG822

IN1

D2

S2

S1

D1

IN2

ADG823

IN1

D2

S2

S1

D1

IN2

SWITCHES SHOWN FOR A LOGIC “0”

INPUT

GENERAL DESCRIPTION

The ADG821, ADG822, and ADG823 are monolithic CMOS

SPST (single pole, single throw) switches. These switches are

designed on an advanced submicron process that provides low

power dissipation, yet gives high switching speed, low on

resistance, and low leakage currents.

The ADG821, ADG822, and ADG823 are designed to operate

from a single 1.8 V to 5.5 V supply, making them ideal for use

in battery-powered instruments.

Each switch of the ADG821/ADG822/ADG823 conducts equally

well in both directions when on. The ADG821, ADG822, and

ADG823 contain two independent SPST switches. The ADG821

and ADG822 differ only in that both switches are normally open

and normally closed, respectively. In the ADG823, Switch 1 is

normally open and Switch 2 is normally closed. The ADG823

exhibits break-before-make switching action.

The ADG821, ADG822, and ADG823 are available in an 8-lead

MSOP package.

PRODUCT HIGHLIGHTS

1. Very Low On Resistance (0.5

Ω typ)

Ω typ)

3. Automotive Temperature Range –40

°C to +125°C

4. 200 mA Current Carrying Capability

5. Low Power Dissipation. CMOS construction ensures low

power dissipation.

6. 8-Lead MSOP Package