RF power detector for 100 kHz to 1000 MHz

31 July 2002 Telecoms, Datacoms, Wireless, IoT

Linear Technology's LTC5507, a precision RF power detector with a wide RF input range of 100 kHz to 1 GHz, requires only two external capacitors. In 6-pin ThinSOT package and 550 µA supply current, the device is claimed to offer the industry's lowest power consumption and smallest total solution. To maximise accuracy and dynamic range, it has an on-chip temperature-compensated Schottky diode peak detector with extended dynamic range and an output buffer. Applications include envelope detectors, wireless data modems, AM and ASK demodulators, etc. Includes an RF peak detector and level-shift amplifier, a gain compression circuit, an internally compensated buffer amplifier, a shutdown circuit and a

delay to avoid output voltage transients. The LTC5507 detects RF input power levels ranging from -34 dBm to +14 dBm and operates from 2,7 V to 6 V.

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