The SSM2142 is an integrated differential-output buffer amplifier that converts a single-ended input signal to a balanced output signal pair with high output drive. By utilizing low noise thermally matched thin film resistors and high slew rate amplifiers, the SS
The SSM2142 is an integrated differential‑output buffer amplifier that converts a single‑ended input to a balanced output with high drive capability. It provides transformer‑like balanced output, low distortion (0.006% THD+N from 20 Hz‑20 kHz) and a high slew rate of 15 V/µs, making it suitable for long cable runs and capacitive loads.
The device is offered in an 8‑pin plastic DIP (SSM2142P) and a 16‑pin SOIC (SSM2142S8) package. It includes features such as output short‑circuit protection, low gain error (0.7% typ), and stable operation into 600 Ω loads. Application notes cover audio consoles, distribution amplifiers, hi‑fi equipment, and industrial instrumentation.
| Input Impedance | 10 kΩ |
|---|---|
| Differential Gain | 5.8‑5.98 dB |
| Power Supply Rejection Ratio | 60‑80 dB |
| THD+N | 0.006 % (20 Hz‑20 kHz) |
| Slew Rate | 15 V/µs |
| Output Impedance | 45‑55 Ω |
| Supply Current (unloaded) | 5.5‑7.0 mA |
| Short‑Circuit Output Current | 60‑70 mA |
The device achieves a typical total harmonic distortion plus noise of 0.006 % from 20 Hz to 20 kHz.