The HMC274QS16 from Analog Devices is a RF Variable Attenuator with Frequency 700 MHz to 2.7 GHz, Attenuation Range 1 to 31 dB, Attenuation Step 31 dB, Power 1 W, P1dB 20 dBm. Tags: IC, Programmable, Digital. More details for HMC274QS16 can be seen below.