The TS97x series operational amplifiers provide output rail-to-rail signal swing, very low noise level and ultra low distortion, and are ideally suited for portable and battery-supplied equipment, such as CD players, PDAs, portable communications equipment (cell phones, pagers), instrumentation and sensoring, and professional audio circuits.
The TS97x family of operational amplifiers from STMicroelectronics offers rail‑to‑rail output swing, ultra‑low noise (4 nV/√Hz) and very low distortion (0.003 %). These features make the devices suitable for portable, battery‑powered equipment and audio pre‑amplification. The three variants – TS971, TS972 and TS974 – are available in several compact packages such as SOT23‑5, QFN8, DIP8, TSSOP8 and TSSOP14.
The datasheet details absolute maximum ratings, electrical characteristics (gain‑bandwidth product up to 12 MHz, slew rate 4 V/µs, supply current 2.8 mA), and mechanical dimensions for each package. Order codes, temperature ranges, and revision history are also included.
| Output voltage swing | ±2.4 V @ VCC = ±2.5 V |
|---|---|
| Noise level | 4 nV/√Hz |
| Total harmonic distortion | 0.003 % |
| Operating voltage range | 2.7 V to 10 V |
| Output source current | 1.5 mA |
| Output sink current | 100 mA |
The TS97x devices provide a rail‑to‑rail output swing of ±2.4 V when powered at ±2.5 V.