AD8302ARUZ

The AD8302ARUZ from Analog Devices is a fully integrated RF/IF Gain and Phase Detector designed for measuring gain/loss and phase in various receive, transmit, and instrumentation applications. It operates across a frequency range of up to 2.7 GHz and accepts input signals from -60 dBm to 0 dBm in a 50 Ohm system.

This device features dual demodulating logarithmic amplifiers, each with a 60 dB measurement range. It provides 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. The AD8302ARUZ supports measurement, controller, and level comparator modes.

It operates from supply voltages ranging from 2.7 V to 5.5 V and consumes approximately 23 mA of current. The device includes 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. The AD8302ARUZ is housed in a 14-TSSOP surface mount package.

Applications for the AD8302ARUZ 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.