The HMC288MS8 from Analog Devices is a RF Variable Attenuator with Frequency 700 MHz to 3.7 GHz, Attenuation Range 2 to 14 dB, Attenuation Step 14 dB, Power 1 W, P1dB 22 to 25 dBm. Tags: IC, Programmable, Digital. More details for HMC288MS8 can be seen below.