The RH5596S from Analog Devices is a Space Qualified Log Detector with Dynamic Range 32 dB (< ± 1 dB Error), Frequency 0.1 to 40 GHz, Logarithmic Slope 29 mV/dB, Output Voltage 5 mV, Supply Current 25 to 35 mA. Tags: Die. More details for RH5596S can be seen below.