General Description

Built as a balanced amplifier, SAC3945A is a GaAs MMIC driver die that covers 18 to 45 GHz with 25 dBm output P1dB. Small signal gain is 15 dB, flat to ±1.5 dB, and typical IM3 is -23 dBc.

The balanced layout gives 1.35:1 VSWR on both ports across the band. It draws 450 mA from +5 V plus a negative gate supply, and the fully passivated die is 2.3 x 1.24 x 0.1 mm. Enough output to drive a mmWave PA in point to point radio, SATCOM or radar.