
Analog Devices
GENERAL DESCRIPTION
The AD608 provides a low power, low distortion, low noise mixer as well as a complete, monolithic logarithmic/limiting amplifier that uses a successive-detection technique. In addition, the AD608 provides both a high speed received signal strength indicator (RSSI) output with 80 dB dynamic range and a hard-limited output.
FEATURES
Mixer
−15 dBm, 1 dB compression point
−5 dBm IP3
24 dB conversion gain
>500 MHz input bandwidth
Logarithmic/limiting amplifier
80 dB RSSI range
±3° phase stability over 80 dB range
Low power
21 mW at 3 V power consumption
CMOS-compatible power-down to 300 μW typical
200 ns enable/disable time
APPLICATIONS
PHS, GSM, TDMA, FM, or PM receivers
Battery-powered instrumentation
Base station RSSI measurements