The HMC611LP4 from Analog Devices is a Log Detector with Dynamic Range 63 dB, Frequency 1 to 10000 MHz, Logarithmic Slope -32 to -24 mV/dB, Supply Current 1 to 106 mA, Supply Voltage 4.5 to 5.5 V. Tags: Surface Mount. More details for HMC611LP4 can be seen below.