FEATURES

LOW NOISE: 1nV/√Hz at 1kHz

LOW THD+N: 0.002% at 1kHz, G = 100

WIDE BANDWIDTH: 800kHz at G = 100

WIDE SUPPLY RANGE: ±4.5V to ±18V

HIGH CMR: > 100dB

GAIN SET WITH EXTERNAL RESISTOR

SO-14 SURFACE-MOUNT PACKAGE

APPLICATIONS

PROFESSIONAL MICROPHONE PREAMPS

MOVING-COIL TRANSDUCER AMPLIFIERS

DIFFERENTIAL RECEIVERS

BRIDGE TRANSDUCER AMPLIFIERS

DESCRIPTION

The INA163 is a very low-noise, low-distortion, monolithic

instrumentation amplifier. Its current-feedback

circuitry achieves very wide bandwidth and excellent

dynamic response over a wide range of gain. It is ideal

for low-level audio signals such as balanced lowimpedance

microphones. Many industrial, instrumentation,

and medical applications also benefit from its

low noise and wide bandwidth.

Unique distortion cancellation circuitry reduces distortion

to extremely low levels, even in high gain. The

INA163 provides near-theoretical noise performance

for 200Ω source impedance. Its differential input, low

noise, and low distortion provide superior performance

in professional microphone amplifier applications.

The INA163’s wide supply voltage, excellent output

voltage swing, and high output current drive allow its

use in high-level audio stages as well.

The INA163 is available in a space-saving SO-14

surface-mount package, specified for operation over

the –40°C to +85°C temperature range.