The HMC580ST89 & HMC580ST89E are InGaP Heterojunction Bipolar Transistor (HBT) Gain Block MMIC SMT amplifiers covering DC to 1 GHz. Packaged in an industry standard SOT89, the amplifier can be used as a cascadable 50 Ohm RF or IF gain stage as well as a PA or LO driver with up to +26 dBm output power. The HMC580ST89(E) offers 22 dB of gain with a +37 dBm output IP3 at 250 MHz, and can operate directly from a +5V supply. The HMC580ST89(E) exhibits excellent gain and output power stability over temperature, while requiring a minimal number of external bias components.