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AD8271

Programmable Gain Precision Difference Amplifier

Analog Devices 

FEATURES

With no external resistors

Difference amplifier, gains of ½, 1, or 2

Single-ended amplifier: over 40 different gains

Set reference voltage at midsupply

Excellent ac specifications

15 MHz bandwidth

30 V/μs slew rate

High accuracy dc performance

0.08% maximum gain error

10 ppm/°C maximum gain drift

80 dB minimum CMRR (gain of 2)

10-lead MSOP package

Supply current: 2.6 mA

Supply range: ±2.5 V to ±18 V

APPLICATIONS

ADC driver

Instrumentation amplifier building blocks

Level translators

Automatic test equipment

High performance audio

Sine/cosine encoders

GENERAL DESCRIPTION

The AD8271 is a low distortion, precision difference amplifier

with internal gain setting resistors. With no external components,

it can be configured as a high performance difference amplifier

with gains of ½, 1, or 2. It can also be configured in over 40 single-

ended configurations, with gains ranging from −2 to +3.

The AD8271 comes in a 10-lead MSOP package. The AD8271

operates on both single and dual supplies and requires only a

2.6 mA maximum supply current. It is specified over the industrial

temperature range of −40°C to +85°C and is fully RoHS compliant.

For a dual channel version of the AD8271, see the AD8270

data sheet.

Programmable Gain

Precision Difference Amplifier

AD8271

FUNCTIONAL BLOCK DIAGRAM

P1 1

10kΩ

10kΩ

10 N3

2

P2

P3 3

P4 4

10kΩ

20kΩ

20kΩ

10kΩ

10kΩ

9

N2

8 N1

OUT

7

–VS 5

AD8271

Figure 1.

6 +VS

Table 1. Difference Amplifiers by Category

High

Speed

AD8270

AD8273

AD8274

AMP03

High

Voltage

AD628

AD629

Single-Supply

Unidirectional

AD8202

AD8203

Single-Supply

Bidirectional

AD8205

AD8206

AD8216

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.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2009 Analog Devices, Inc. All rights reserved.

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