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SSM2141:  High Common-Mode Rejection Differential Line Receiver

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.


  • 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

Functional Block for SSM2141

Evaluation Kits & Symbols & Footprints

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Price, packaging, availability

SSM2141 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
SSM2141PZ Status: Production 8 ld PDIP 8 Ind Tube, 50 $1.92 $1.74 Y  Material Info PCN Purchase
SSM2141SZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.92 $1.74 Y  Material Info PCN Purchase
SSM2141SZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.74 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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