The AD8312 from Analog Devices is a RF Detector with Frequency 0.05 to 3.5 GHz, Max Input Power -48 to 3 dBm, Dynamic Range 40 to 50 dB, Supply Voltage 2.7 to 5.5 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Power Detector. More details for AD8312 can be seen below.