TS971-TS972-TS974 are low noise operational amplifiers from TI with a working voltage range of 2.7V-10V. They feature extremely low noise and distortion, making them suitable for portable and battery-powered equipment.
The TS971, TS972 and TS974 are rail‑to‑rail output operational amplifiers designed for portable, battery‑powered equipment. They feature very low noise (4 nV/√Hz), ultra‑low distortion (0.003 %), and a wide supply range of 2.7 V to 10 V, making them suitable for audio pre‑amplification and instrumentation.
The devices are offered in several compact packages, including SOT‑23‑5, QFN8, DIP‑8, SO‑8 and DFN8, with detailed mechanical dimensions and thermal resistance data provided. Order codes, absolute maximum ratings, and electrical characteristics are listed for each variant.
| Supply voltage range | 2.7 V to 10 V |
|---|---|
| Output rail‑to‑rail swing | +2.4 V @ Voc = +2.5 V |
| Input noise density | 4 nV/√Hz |
| Gain‑bandwidth product | 12 MHz |
| Input offset voltage | 4‑5 mV |
| Output source current | 1.5 mA |
| Output sink current | 100 mA |
The amplifiers operate from 2.7 V up to 10 V supply voltage.
They are offered in SOT‑23‑5, QFN8, DIP‑8, SO‑8 and DFN8 packages.
The typical input offset voltage is 4 mV with a maximum of 5 mV.