AD8302ARU

The AD8302ARU is a fully integrated RF/IF Gain and Phase Detector from Analog Devices, capable of measuring gain/loss and phase up to 2.7 GHz. It operates from a single supply voltage ranging from 2.7 V to 5.5 V and features an input range of -60 dBm to 0 dBm in a 50 Ohm system.

This device offers accurate gain measurement scaling of 30 mV/dB and phase measurement scaling of 10 mV/Degree, with typical nonlinearities of less than 0.5 dB for gain and less than 1 degree for phase. It includes dual demodulating log amps and a phase detector, making it suitable for applications like RF/IF PA linearization, precise RF power control, and return loss measurements.

The AD8302ARU is housed in a 14-TSSOP package for surface mounting. It has a typical current consumption of 23 mA and provides a stable 1.8 V reference voltage output. The small signal envelope bandwidth extends from DC to 30 MHz, which can be optionally filtered externally.

Key applications include RF/IF PA linearization, precise RF power control, remote system monitoring and diagnostics, return loss/VSWR measurements, and log ratio functions for AC signals.