The TPA6211A1 is a 3.1W mono fully-differential audio power amplifier designed for wireless handsets, PDAs, and notebook computers. It features low power consumption, fast startup, low distortion, and wide voltage range.
The TPA6211A1 audio power amplifier from Texas Instruments delivers up to 3.1 W into a 3 Ω load from a 5 V supply while consuming only 4 mA of quiescent current. It operates from 2.5 V to 5.5 V, features a shutdown current of 0.01 µA, and includes fast startup with minimal pop.
The device is offered in a 3 mm × 3 mm QFN (PowerPAD™) and an 8‑pin MSOP package. Key performance figures include a PSRR of –80 dB, a CMRR of –63 dB, and a typical THD+N of 0.02 % at 1 kHz into a 4 Ω load. The datasheet provides absolute‑maximum ratings, recommended operating conditions, electrical characteristics, and typical performance graphs.
| Supply voltage range | 2.5 V to 5.5 V |
|---|---|
| Quiescent current | 4 mA typ |
| Shutdown current | 0.01 µA typ |
| Power‑supply rejection ratio (PSRR) | ‑80 dB |
| Common‑mode rejection ratio (CMRR) | ‑63 dB |
The amplifier operates from 2.5 V up to 5.5 V.
It draws about 4 mA of quiescent current at a 5 V supply.
The device provides a PSRR of about –80 dB and a CMRR of about –63 dB.