Description
Alpha’s four-stage reactively-matched 28–40 GHz GaAs MMIC low noise amplifier has typical small signal gain of 17 dB with a typical noise figure of 3.8 dB at 38 GHz.The chip uses Alpha’s proven 0.25 µm low noise PHEMT technology, and is based upon MBE layers and electron beam lithography for the highest uniformity and repeatability. The FETs employ surface passivation to ensure a rugged, reliable part with through-substrate via holes and gold-based backside metallization to facilitate a conductive epoxy die attach process.

FEATUREs
■ Single Bias Supply Operation (4.5 V)
■ 3.8 dB Typical Noise Figure at 38 GHz
■ 17 dB Typical Small Signal Gain
■ 0.25 µm Ti/Pd/Au Gates
■ 100% On-Wafer RF, DC and Noise Figure Testing
■ 100% Visual Inspection to MIL-STD-883 MT 2010