The HMC476SC70E is a SiGe Heterojunction Bipolar Transistor (HBT) Gain Block MMIC Amplifier covering DC to 6GHz. The HMC476SC70(E) offers 20dB of gain with a +24dBm output IP3 at 850MHz while requiring only 35mA from a single positive supply. The Darlington topology results in reduced sensitivity to normal process variations and excellent gain stability over temperature while requiring a minimal number of external bias components.