The document introduces the features and characteristics of the AD8311 product. AD8311 is a low-cost subsystem that provides 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 provides a complete RF detector and controller solution for precise power‑amplifier control in cellular handsets and other battery‑operated wireless devices. It covers a frequency range of 0.1 GHz to 2.5 GHz, delivers a dynamic range greater than 50 dB, and features temperature‑stable linear‑in‑dB response.
The device is supplied in a 6‑ball wafer‑level chip‑scale package (1.0 mm × 1.5 mm) and operates from a 2.7 V to 5.5 V supply. Pin‑out includes VPOS, VAPC, VSET, FLTR, COMM and RFIN, allowing direct connection to handset power‑amplifier gain‑control pins. Detailed specifications, performance graphs, and evaluation‑board options are provided in the document.
| Frequency range | 0.1 GHz – 2.5 GHz |
|---|---|
| Dynamic range | >50 dB |
| Supply voltage (VPOS) | 2.7 V – 5.5 V |
| Quiescent current | 5 mA – 7.6 mA |
| Output voltage range (VAPC) | 300 mV above ground to 200 mV below supply |
| Operating temperature range | −40 °C – +85 °C |
| Package | 6‑ball WLCSP, 1.0 mm × 1.5 mm |
The AD8311 operates from 0.1 GHz up to 2.5 GHz.
It can be powered from 2.7 V to 5.5 V.
The device offers a dynamic range greater than 50 dB.
VAPC can swing from 300 mV above ground to within 200 mV below the supply voltage.