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AD8273

Very Low Distortion, Dual-Channel, High Precision Difference Amplifier

Analog Devices 

Very Low Distortion, Dual-Channel,

High Precision Difference Amplifier

AD8273

FEATURES

±4000 V HBM ESD

Very low distortion

0.00025% THD + N (20 kHz)

0.0015% THD + N (100 kHz)

Drives 600 Ω loads

Two gain settings

Gain of ½ (−6 dB)

Gain of 2 (+6 dB)

0.05% maximum gain error

10 ppm/°C maximum gain drift

Excellent ac specifications

20 V/μs minimum slew rate

800 ns to 0.01% settling time

High accuracy dc performance

77 dB minimum CMRR

700 μV maximum offset voltage

14-lead SOIC package

Supply current: 2.5 mA maximum per channel

Supply range: ±2.5 V to ±18 V

FUNCTIONAL BLOCK DIAGRAM

+VS

11

12kΩ

2

6kΩ

12

12kΩ

3

12kΩ

6

13

6kΩ

14

6kΩ

10

9

12kΩ

5

6kΩ

8

4

–VS

Figure 1.

APPLICATIONS

ADC drivers

High performance audio

Instrumentation amplifier building blocks

Level translators

Automatic test equipment

Sine/cosine encoders

GENERAL DESCRIPTION

The AD8273 is a low distortion, dual-channel amplifier with

internal gain setting resistors. With no external components, it

can be configured as a high performance difference amplifier

(G = ½ or 2), inverting amplifier (G = ½ or 2), or noninverting

amplifier (G = 1½ or 3).

The AD8273 operates on both single and dual supplies and only

requires 2.5 mA maximum supply current for each amplifier. It

is specified over the industrial temperature range of −40°C to

+85°C and is fully RoHS compliant.

Table 1. Difference Amplifiers by Category

Low

Distortion

AD8270

AD8273

AD8274

AMP03

High

Voltage

AD628

AD629

Single-Supply

Unidirectional

AD8202

AD8203

Single-Supply

Bidirectional

AD8205

AD8206

AD8216

Rev. B

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 ©2008–2010 Analog Devices, Inc. All rights reserved.

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