AD8302
Overview
The AD8302 is a fully integrated RF IC that measures both amplitude ratio and phase difference between two independent input signals. It operates from low frequencies up to 2.7 GHz and utilizes dual demodulating logarithmic amplifiers to provide accurate gain and phase measurements in a compact 14-TSSOP package. This device is particularly useful for monitoring system performance and performing diagnostics in RF signal chains.
Why Choose This Part
The AD8302 eliminates the need for complex discrete circuits or DSP-heavy processing by providing direct analog outputs for gain and phase with a high accuracy of +/-0.5dB. It maintains performance over a wide dynamic range of -60 dBm to 0 dBm and requires only a single supply between 2.7V and 5.5V, simplifying power management in mobile and industrial RF equipment.
Applications
Key Specifications
Getting Started
Designers should prioritize low-impedance ground planes and proper RF shielding to maintain signal integrity up to 2.7 GHz. The AD8302-EVALZ evaluation board is available to quickly test the device's gain and phase response using standard SMA connectors. Ensure the input signals are AC-coupled and the 1.8V internal reference is properly bypassed if used for level shifting the output voltages.
AD8302 Family
| Part Number | Difference | Stock |
|---|---|---|
| AD8302ARUZ-RL7 | ARUZ-RL7 | 676 |
| AD8302ARUZ | ARUZ | 1,386 |
| AD8302ARZ | ARZ | — |
