AD8319 PDF Datasheet
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Description
This is Log Detector/Controller. Data Sheet
FEATURES
Wide bandwidth: 1 MH- to 10 GH- High accuracy: ±1.0 dB over temperature 45 dB dynamic range up to 8 GH- 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 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 maintains accurate log conformance for signals of 1 MH- to 8 GH- and provides u.