The DAS8121 from Teledyne Microwave Solutions is a RF Detector with Frequency 500 to 8000 MHz, Max Input Power 36.99 dBm, Max Input Power 0 to 0.003 W, Frequency Flatness ±0.5 to 0.75 dB, Voltage Sensitivity 90 to 140 mV. Tags: Surface Mount, Log Detector. More details for DAS8121 can be seen below.