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a

AD8601/AD8602

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

Precision CMOS Single Supply

Rail-to-Rail Input/Output Wideband

Operational Amplifiers

FUNCTIONAL BLOCK DIAGRAMS

5-Lead SOT-23

(RT Suffix)

1

2

3

5

4

IN

+IN

V+

OUT A

AD8601

V

8-Lead

SOIC

(RM Suffix)

IN A

IN A

V

OUT B

IN B

+IN B

V

+

1

45

8

AD8602

OUT A

8-Lead SOIC

(R Suffix)

1

2

3

4

8

7

6

5

AD8602

IN A

V

+IN A

OUT B

IN B

V+

+IN B

OUT A

FEATURES

Low Offset Voltage: 500

V Max

Single Supply Operation: 2.7 V to 6 V

Low Supply Current: 750

A/Amplifier

Wide Bandwidth: 8 MHz

Slew Rate: 5 V/ s

Low Distortion

No Phase Reversal

Low Input Currents

Unity Gain Stable

APPLICATIONS

Barcode Scanners

Battery-Powered Instrumentation

Multipole Filters

Sensors

Current Sensing

ASIC Input or Output Amplifier

Audio

GENERAL DESCRIPTION

The AD8601 and AD8602 are single and dual rail-to-rail input

and output single supply amplifiers featuring very low offset voltage

and wide signal bandwidth. These amplifiers use a new, patented

trimming technique that achieves superior performance without

laser trimming. All are fully specified to operate from 3 V to 5 V

single supply.

The combination of low offsets, very low input bias currents, and

high speed make these amplifiers useful in a wide variety of applica-

tions. Filters, integrators, diode amplifiers, shunt current sensors,

and high impedance sensors all benefit from the combination of

performance features. Audio and other ac applications benefit from

the wide bandwidth and low distortion. For the most cost-sensitive

applications the D grades offer this ac performance with lower dc

precision at a lower price point.

Applications for these amplifiers include audio amplification for

portable devices, portable phone headsets, bar code scanners,

portable instruments, and multipole filters.

The ability to swing rail-to-rail at both the input and output

enables designers to buffer CMOS ADCs, DACs, ASICs, and

other wide output swing devices in single supply systems.

The AD8601 and AD8602 are specified over the extended industrial

(–40

°C to +125°C) temperature range. The AD8601, single, is avail-

able in the tiny 5-lead SOT-23 package. The AD8602, dual, is avail-

able in 8-lead MSOP and narrow SOIC surface-mount packages.

SOT and

µSOIC versions are available in tape and reel only.