Low-Noise, Low-Distortion

INSTRUMENTATION AMPLIFIER

Replacement for SSM2017

DESCRIPTION

The INA217 is a low-noise, low-distortion, monolithic instru-

mentation amplifier. Current-feedback circuitry allows the

INA217 to achieve wide bandwidth and excellent dynamic

response over a wide range of gain. The INA217 is ideal for

low-level audio signals such as balanced low-impedance

microphones. Many industrial, instrumentation, and medical

applications also benefit from its low noise and wide band-

width.

Unique distortion cancellation circuitry reduces distortion to

extremely low levels, even in high gain. The INA217 provides

near-theoretical noise performance for 200

Ω source imped-

ance. The INA217 features differential input, low noise, and

low distortion that provides superior performance in profes-

sional microphone amplifier applications.

The INA217 features wide supply voltage, excellent output

voltage swing, and high output current drive making it an

optimal candidate for use in high-level audio stages.

The INA217 is available in the same DIP-8 and SOL-16 wide

body packages and pin outs as the SSM2017. For a smaller

package, see the INA163 in SO-14 narrow. The INA217 is

specified over the temperature range of –40

°C to +85°C.

APPLICATIONS

q PROFESSIONAL MICROPHONE PREAMPS

q MOVING-COIL TRANSDUCER AMPLIFIERS

q DIFFERENTIAL RECEIVERS

q BRIDGE TRANSDUCER AMPLIFIERS

FEATURES

q LOW NOISE: 1.3nV/

√Hz at 1kHz

q LOW THD+N: 0.004% at 1kHz, G = 100

q WIDE BANDWIDTH: 800kHz at G = 100

q WIDE SUPPLY RANGE:

q HIGH CMR: > 100dB

q GAIN SET WITH EXTERNAL RESISTOR

q DIP-8 AND SOL-16 WIDEBODY PACKAGES

INA217

SBOS247A – JUNE 2002 – REVISED SEPTEMBER 2002

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 2002, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

INA2

17

INA2

17

A1

A2

A3

6k

Ω

6k

Ω

6

45

2

1

8

3

6k

Ω

6k

Ω

V

RG

1

V

RG

2

7

V–

V+

REF

INA217

G = 1 +

10k

Ω

R

G

5k

Ω

5k

Ω

V

OUT