Product Details
●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 common-mode 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.
●The SSM2141 achieves low distortion performance by maintaining a large slew rate of 9.5 V/µs and high open-loop gain. Distortion is less than 0.002% over the full audio bandwidth. The SSM2141 complements the SSM2142 balanced line driver. Together, these devices comprise a fully integrated solution for equivalent transformer balancing of audio signals without the problems of distortion, EMI fields, and high cost.
●Additional applications for the SSM2141 include summing signals, differential preamplifiers, and 600 Ohm low distortion buffer amplifiers. For similar performance with G = 1/2, see SSM2143.
●T
●### Features and Benefits
● 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
