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%.
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
| Audio & Video Products |
| Document | note |
| SSM2143: -6 dB Differential Line Receiver Data Sheet (Rev. A) | PDF 364 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| SSM2143PZ Production | 8 ld PDIP | OTH 50 | -40 to 85C | 1.84 | 1.66 | Y |
| SSM2143SZ Production | 8 ld SOIC | OTH 98 | -40 to 85C | 0 | 0 | Y |
| SSM2143SZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 0 | Y |
