AD8551ARM Analog Devices, AD8551ARM Datasheet

AD8551ARM

Manufacturer Part Number

AD8551ARM

Description

Zero-Drift/ Single-Supply/ Rail-to-Rail Input/Output Operational Amplifiers

Manufacturer

Analog Devices

Datasheet

1.AD8551ARM.pdf (20 pages)

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GENERAL DESCRIPTION

This new family of amplifiers has ultralow offset, drift and bias

current. The AD8551, AD8552 and AD8554 are single, dual and

quad amplifiers featuring rail-to-rail input and output swings. All

are guaranteed to operate from +2.7 V to +5 V single supply.

The AD855x family provides the benefits previously found only

in expensive autozeroing or chopper-stabilized amplifiers. Using

Analog Devices’ new topology these new zero-drift amplifiers

combine low cost with high accuracy. No external capacitors are

required.

With an offset voltage of only 1 V and drift of 0.005 V/ C,

the AD8551 is perfectly suited for applications where error

sources cannot be tolerated. Temperature, position and pres-

sure sensors, medical equipment and strain gage amplifiers

benefit greatly from nearly zero drift over their operating

temperature range. The rail-to-rail input and output swings

provided by the AD855x family make both high-side and low-

side sensing easy.

The AD855x family is specified for the extended industrial/

automotive (–40 C to +125 C) temperature range. The AD8551

single is available in 8-lead MSOP and narrow 8-lead SOIC

packages. The AD8552 dual amplifier is available in 8-lead

narrow SO and 8-lead TSSOP surface mount packages. The

AD8554 quad is available in narrow 14-lead SOIC and 14-lead

TSSOP packages.

REV. 0

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.

FEATURES

Low Offset Voltage: 1 V

Input Offset Drift: 0.005 V/ C

Rail-to-Rail Input and Output Swing

+5 V/+2.7 V Single-Supply Operation

High Gain, CMRR, PSRR: 130 dB

Ultralow Input Bias Current: 20 pA

Low Supply Current: 700 A/Op Amp

Overload Recovery Time: 50 s

No External Capacitors Required

APPLICATIONS

Temperature Sensors

Pressure Sensors

Precision Current Sensing

Strain Gage Amplifiers

Medical Instrumentation

Thermocouple Amplifiers

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

Tel: 781/329-4700

Fax: 781/326-8703

OUT A

OUT B

OUT A

+IN A

IN A

IN B

IN A

14-Lead TSSOP

8-Lead TSSOP

NC = NO CONNECT

8-Lead MSOP

(RM Suffix)

(RU Suffix)

AD8551/AD8552/AD8554

AD8551

AD8554

AD8552

Zero-Drift, Single-Supply,

Rail-to-Rail Input/Output

PIN CONFIGURATIONS

Operational Amplifiers

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

V+

OUT A

OUT D

OUT C

V+

OUT B

+IN B

IN D

IN C

IN B

OUT A

OUT B

OUT A

+IN A

+IN B

+IN A

IN A

IN B

IN A

V+

NC = NO CONNECT

8-Lead SOIC

14-Lead SOIC

8-Lead SOIC

(R Suffix)

AD8554

AD8551

AD8552

V+

OUT B

OUT A

+IN B

OUT D

+IN D

+IN C

OUT C

IN B

IN D

IN C

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