The LTC5564 is a precision, RF power detector for applications in the 600MHz to 15GHz frequency range. The LTC5564 operates with input power levels from –24dBm to 16dBm.A temperature compensated Schottky diode peak detector, gain-selectable operational amplifier, and fast comparator are combined in a small 16-lead 3mm × 3mm QFN package.The RF input signal is peak detected and then sensed by both a comparator and amplifier. The comparator provides a 9ns response time to input levels exceeding VREFalong with a latch enable/disable function. The gain selectable operational amplifier provides a 350V/μs slew rate and 75MHz of demodulation bandwidth to the analog output.VOUTADJand VREFpins allow for the adjustment of VOUToffset and VCOMPswitch point voltages, respectively.ApplicationsRF Signal Presence Detectors for: 802.11a, 802.11b, 802.11g, 802.15, Optical Data Links, Wireless Data Modems, Wireless and Cable Infrastructure5.8GHz ISM Band RadiosMMDS Microwave LinksPA Power Supply Envelope Tracking ControlFast AlarmRF Power MonitorEnvelope DetectorUltra-Wideband RadioRadar Detector