GENERAL DESCRIPTION

The SSM2143 is an integrated differential amplifier intended to receive balanced line inputs in audio applications requiring a high level of immunity from common-mode noise. The device provides a typical 90 dB of common-mode rejection (CMR), which is achieved by laser trimming of resistances to better than 0.005.

FEATURES

High Common-Mode Rejection

DC: 90 dB typ

60 Hz: 90 dB typ

20 kHz: 85 dB typ

Ultralow THD: 0.0006 typ @ 1 kHz

Fast Slew Rate: 10 V/μs typ

Wide Bandwidth: 7 MHz typ (G = 1/2)

Two Gain Levels Available: G = 1/2 or 2

Low Cost