The LTC6420-20 from Analog Devices is a RF Amplifier with Frequency DC to 1.8 GHz, Gain 20 dB, Noise Figure 6.2 dB, Output Power 18 dBm, Output Power 0.063 W. Tags: Surface Mount, Differential Amplifier, Driver Amplifier. More details for LTC6420-20 can be seen below.