GENERAL DESCRIPTION

The ADL5513 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.

FEATURES

Wide bandwidth: 1 MHz to 4 GHz

80 dB dynamic range (±3 dB)

Stability over temperature: < ±0.5 dB

Low noise measurement/controller output (VOUT)

Pulse response time: 10 ns

Small footprint package: 3 mm x 3 mm LFCSP

Supply operation: 2.7 to 5.5 V at30 mA

Fabricated using high speed SiGe process

APPLICATIONS

RF transmitter PA setpoint control and level monitoring

Power monitoring in radiolink transmitters

RSSI measurement in base stations, WLAN, WiMAX, radar