GENERAL DESCRIPTION

The SSM2141 is an integrated differential amplifier intended to receive balanced line inputs in audio applications requiring a high level of noise immunity and optimum common-mode rejection. The SSM2141 typically achieves 100 dB of commonmode rejection (CMR), whereas implementing an op amp with four off-the-shelf precision resistors will typically achieve only 40 dB of CMR—inadequate for high-performance audio.

FEATURES

High Common-Mode Rejection

DC: 100 dB typ

60 Hz: 100 dB typ

20 kHz: 70 dB typ

40 kHz: 62 dB typ

Low Distortion: 0.001 typ

Fast Slew Rate: 9.5 V/μs typ

Wide Bandwidth: 3 MHz typ

Low Cost

Complements SSM2142 Differential Line Driver

APPLICATIONS

Line Receivers

Summing Amplifiers

Buffer Amplifiers–Drives 600 Ω Load