MAGX-100027 50V GaN on Si HEMT Amplifiers MACOM MAGX-100027 50V GaN on Si (Gallium Nitride on Silicon) HEMT (High-Electron-Mobility Transistor) Amplifiers are high power devices optimized for DC to 2.7GHz frequency operation. The MAGX-100027 Amplifiers support both CW (Continuous Wave) and pulsed operation with peak output power levels from 15W to 300W. Each device integrates a pair of isolated, symmetric amplifiers and is internally pre-matched.