ad8574-ep Analog Devices, Inc., ad8574-ep Datasheet

ad8574-ep

Manufacturer Part Number

ad8574-ep

Description

Zero-drift, Single-supply, Rail-to-rail I/o Quad, Operational Amplifier Ad8574-ep

Manufacturer

Analog Devices, Inc.

Datasheet

1.AD8574-EP.pdf (16 pages)

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FEATURES

Supports defense and aerospace applications (AQEC

Military temperature range ( −55°C to +125°C)

Controlled manufacturing baseline

One assembly/test site

One fabrication site

Enhanced product change notification

Qualification data available on request

Low offset voltage: 1 µV

Input offset drift: 0.005 µV/°C

Rail-to-rail input and output swing

5 V/2.7 V single-supply operation

High gain: 145 dB typical

CMRR: 140 dB typical

PSRR: 130 dB typical

Ultralow input bias current: 10 pA typical

Low supply current: 750 µA per op amp

Overload recovery time: 50 µs

No external capacitors required

APPLICATIONS

Temperature sensors

Pressure sensors

Precision current sensing

Strain gage amplifiers

GENERAL DESCRIPTION

This amplifier has ultralow offset, drift, and bias current. The

AD8574-EP is a quad amplifier, featuring rail-to-rail input and

output swings. It is guaranteed to operate from 2.7 V to 5 V

single supply.

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 that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

standard)

Zero-Drift, Single-Supply, Rail-to-Rail I/O

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

Tel: 781.329.4700

Fax: 781.461.3113

The AD8574-EP provides benefits previously found only in

expensive auto-zeroing or chopper-stabilized amplifiers. Using

a patented spread-spectrum, auto-zero technique, the AD8574

eliminates the intermodulation effects from interaction of the

chopping function with the signal frequency in ac applications.

With an offset voltage of only 1 µV and drift of 0.005 µV/°C, the

AD8574-EP is perfectly suited for applications where error

sources must be minimized.

The AD8574-EP is specified for the military temperature range

(−55°C to +125°C). The AD8574-EP quad amplifier is available in

a 14-lead TSSOP package.

Additional applications and technical information is available in

the

AD8571/AD8572/AD8574

Quad, Operational Amplifier

OUT B

OUT A

Figure 1. 14-Lead TSSOP (RU Suffix)

+IN A

+IN B

–IN B

PIN CONFIGURATIONS

–IN A

V+

AD8574-EP

(Not to Scale)

TOP VIEW

data sheets.

AD8574-EP

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

www.analog.com

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