HITTITE Microwave, represented by ASD Technology in Australia and New Zealand, has released two SiGe HBT gain block MMIC amplifiers for use in cellular/3G, FWA, CATV, microwave radio and test equipment applications from dc to 4GHz.
The HMC478ST89 and HMC478MP86 SiGe HBT gain blocks are fully matched to 50Ω, provide 22 dB of gain and can be used as cascadeable gain stages in various RF and IF applications. With +18 dBm of output P1dB and +32 dBm of output IP3 at 1GHz, the HMC478ST89 and HMC478MP86 can also be used as LO buffer amplifiers or as PA pre-drivers. These versatile MMIC amplifiers operate from a single positive supply of +5V to +12V, consume only 62mA, and require no external matching components. Both products offer a Class 1C (1000V HBM) ESD rating. The HMC478ST89 is housed in an industry-standard SOT89 surface mount package, while the HMC478MP86 is packaged in Micro-X.