The ADL5519 from Analog Devices is a Log Detector with Dynamic Range 62 dB, Frequency 0.001 to 10 GHz, Input Power 0 to 60 dBm, Logarithmic Slope -22 mV/dB, Output Voltage 0.6 to 1.48 V. Tags: Surface Mount, Chip. More details for ADL5519 can be seen below.