General Description

SAC3154 is a C-band GaAs MMIC power amplifier die for 5 to 8 GHz. Small signal gain is 23 dB, flat to ±2 dB, and output P1dB reaches 39 dBm.

The drain runs at +8 V with a negative gate bias and about 5.5 A of current, so the heat path deserves real attention. The 5 x 4.5 x 0.1 mm die has surface passivation plus backside vias and gold metallization for conductive epoxy attach. It is aimed at point-to-point radio transmitters.