The AD8362 is a true rms-responding power detector that has a 65 dB measurement dynamic range and can accurately convert rms to dc from 50 Hz to 3.8 GHz. The AD8362 operates from 4.5 V to 5.5 V at 24 mA and has a standby power of 1.3 mW.
The AD8362 is a true‑rms responding power detector intended for high‑frequency communication systems and RF instrumentation. It offers a 65 dB measurement range, linear‑in‑decibels output (50 mV/dB), and operates from 4.5 V to 5.5 V with low power‑down consumption.
The device includes a resistive ladder attenuator, a variable gain amplifier, and a square‑law detector cell. Detailed specifications cover input frequency up to 3.8 GHz, input power range from –52 dBm to +8 dBm (differential), and a rail‑to‑rail output. Pin configurations, equivalent circuits, and typical performance graphs are provided for design integration.
| Maximum Input Frequency | 3.8 GHz |
|---|---|
| Input Power Range (Differential) | -52 dBm to +8 dBm |
| Input Power Range (Differential) High End | +8 dBm |
| Output Scaling (Log Slope) | 50 mV/dB |
| Supply Voltage | 4.5 V to 5.5 V |
| Quiescent Current | 20 mA |
| Power‑down Consumption | 1.3 mW |
The AD8362 can accept input signals up to 3.8 GHz.
In power‑down mode the device consumes only 1.3 mW.
It operates from 4.5 V to 5.5 V.
The output is scaled at 50 mV per dB.