The ADL5902 Rev. A is a high performance power detector that provides DC output for power amplifier linearization/control loops, transmitter power control, transmitter signal strength indication (TSSI) and RF instrumentation.
The ADL5902 is a true‑rms responding power detector that provides accurate rms‑to‑dc conversion from 50 MHz to 9 GHz with a single‑ended 65 dB dynamic range. It operates from a single 5 V supply, requires no external balun, and includes temperature‑stable performance from –40 °C to +125 °C.
The device is supplied in a 4 mm × 4 mm, 16‑lead LFCSP and offers pin‑compatible options, low power‑down consumption (1.5 mW), and a logarithmic output scaled at approximately 53 mV/dB. Detailed specifications, pin functions, and typical performance curves are provided throughout the document.
| Frequency Range | 50 MHz to 9 GHz |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V |
| Temperature Range (operating) | -40 °C to +125 °C |
| Input Impedance | 50 Ω |
It operates from a single supply of 4.5 V to 5.5 V.
It operates from –40 °C up to +125 °C.