SSM2143

6分贝差动线路接收器 6 dB Differential Line Receiver

Product Details

The 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%.

Additional features of the device include a slew rate of 10 V/µs and wide bandwidth. Total harmonic distortion THD is less than 0.004% over the full audio band, even while driving low impedance loads. The SSM2143 input stage is designed to handle input signals as large as +28 dBu at G = 1/2. Although primarily intended for G = 1/2 applications, a gain of 2 can be realized by reversing the +IN/-IN and SENSE/REFERENCE connections.

When configured for a gain of 1/2, the SSM2143 and SSM2142 Balanced Line Driver provide a fully integrated, unity gain solution to driving audio signals over long cable runs. For similar performance with G = 1, see SSM2141.

### Features and Benefits

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High Common-Mode Rejection

DC: 90 dB typ

60 Hz: 90 dB typ

20 kHz: 85 dB typ

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Ultralow THD: 0.0006% typ @ 1 kHz

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Fast Slew Rate: 10 V/ms typ

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Wide Bandwidth: 7 MHz typ G = 1/2

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

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Low Cost