AD8319 - Analog Devices

AD8319 Log Detector/Controller

The AD8319 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output. It employs the progressive compression technique over a cascaded amplifier chain, each stage of which is equipped with a detector cell. The device can be used in either measurement or controller modes. The AD8319 m.

Features

Wide bandwidth: 1 MHz to 10 GHz High accuracy: ±1.0 dB over temperature 45 dB dynamic range up to 8 GHz Stability over temperature: ±0.5 dB Low noise measurement/controller output VOUT Pulse response time (fall/rise): 6 ns/10 ns Small footprint: 2 mm × 3 mm LFCSP Supply operation: 3.0 V to 5.5 V @ 22 mA Fabricated using high speed SiGe process APPLICATIONS RF transmitter PA setpoint controls and level monitoring Power monitoring in radiolink transmitters RSSI measurement in base stations, WLANs, WiMAX, and radars GENERAL DESCRIPTION The AD8319 is a demodulating logarithmic amplifier, capable o.