The AD8311 is a complete low cost subsystem for the precise control of RF power amplifiers operating in the frequency range 0.1 GHz to 2.5 GHz and over a typical dynamic range of 50 dB. It is intended for use in cellular handsets and other battery-operated wireless devices.
The AD8311 is a low‑cost RF detector/controller subsystem that provides precise power‑amplifier control over a 0.1 GHz to 2.5 GHz frequency range with a typical dynamic range of about 50 dB. It delivers a voltage output (VAPC) suitable for direct gain‑control of handset power amplifiers and includes a set‑point input (VSET) for easy integration.
The document lists detailed electrical specifications, pin functions, typical performance characteristics, and absolute maximum ratings. It also includes application notes such as mobile handset power‑control examples, calibration procedures, and evaluation board information.
| Frequency range | 0.1 – 2.5 GHz |
|---|---|
| Supply voltage (VPOS) | 2.7 – 5.5 V |
The AD8311 operates from 2.7 V to 5.5 V supply voltage.