The SGB2233Z is a high performance DC to 4500MHz SiGe HBT MMIC Gain Block. It utilizes a Darlington configuration with an active bias network. The active bias network provides stable current over temperature eliminating the need for a dropping resistor. It is designed to run directly from a 3V to 5V supply and features low thermal resistance and unconditional stability. The SGB2233Z is internally matched to 50Ω.