General Description

SAC3940 is a GaAs MMIC distributed (traveling wave) amplifier die that spans 10 MHz to 50 GHz. Across that range it holds 8 dB of gain within ±1.5 dB, with 13 dBm output P1dB at 40 GHz and a 7 dB noise figure at 30 GHz.

Input and output return loss are both around 12 dB. Bias is +8 V at 130 mA, and the passivated die measures 3.54 x 1 x 0.1 mm. That much bandwidth in one gain stage suits test and measurement, fiber optic links and wideband microwave radio.