Single, Ultralow Distortion,

Ultralow Noise Op Amp

Preliminary Technical Data

AD8597

Rev. PrA

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FEATURES

Low noise: 1 nV/√Hz at 1 kHz

Low distortion: −105 dB THD @ 20 kHz

<80 nV p-p input noise, 0.1 Hz to 10 Hz

Slew rate: 16 V/μs

Wide bandwidth: 10 MHz

Supply current: 4.7 mA typical

Low offset voltage: 10 μV typical

CMRR: 120 dB

Unity-gain stable

±15 V operation

APPLICATIONS

Professional audio preamplifiers

ATE/precision testers

Imaging systems

Medical/physiological measurements

Precision detectors/instruments

Precision data conversion

PIN CONFIGURATION

Figure 1. 8-Lead SOIC (R-8)

Figure 2. 8-LFCSP (3x3)(CP-8)

GENERAL DESCRIPTION

The AD8597 is a single, very low noise, low distortion opera-

tional amplifier ideal for use as a preamplifier. The low noise of

1 nV/√Hz and low harmonic distortion of −105 dB (or better)

at audio bandwidths give the AD8597 the wide dynamic range

necessary for preamps in audio, medical, and instrumentation

applications. The AD8597’s excellent slew rate of 16 V/μs and

10 MHz gain bandwidth make it highly suitable for medical

applications. The low distortion and settling time of the AD8597

make it ideal for buffering of high resolution data converters.

The AD8597 is available in an 8-Lead SOIC and 8-Lead LFCSP

(3x3) packages and is specified over a −40°C to +125°C

temperature range.

NC = NO CONNECT

1

2

3

4

8

7

6

5

TO P VIEW

(Not to Scale)

NC

-IN

+IN

V-

NC

V+

OUT

NC