75-W, 2.7 – 3.5-GHz, GaN MMIC Power Amplifier

Wolfspeed’s CMPA2735075D is a gallium-nitride (GaN) HEMT-based monolithic microwave integrated circuit (MMIC). GaN has superior properties compared to silicon or gallium-arsenide, including higher breakdown voltage, higher saturated electron drift velocity and higher thermal conductivity. GaN HEMTs also offer greater power density and wider bandwidths compared to Si and GaAs transistors. This MMIC contains a two-stage reactively matched amplifier design approach enabling very wide bandwidths to be achieved.

Small Signal Gain 28 dB
Typical Power (PSAT) 80 W
75 W
Operating Voltage 28 V
Breakdown Voltage High
Temperature Operation High
Size 0.197 x 0.174 x 0.004 in
Package Type Die
Peak Output Power 75 W
Frequency 2.7 - 3.5 GHz


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by Raymond S. Pengelly, Simon M. Wood, James W. Milligan, Scott T. Sheppard, and William L. Pribble
Design 01 Jun 2012