HMC452ST89

Overview

The HMC452ST89 is a high dynamic range GaAs InGaP HBT MMIC power amplifier manufactured by Analog Devices Inc. It operates within a frequency range of 0.4 to 2.2 GHz and delivers an output power of 1 Watt. The device utilizes a single +5V supply voltage with a typical supply current of 510 mA. Key performance metrics include a gain of 9 dB, a noise figure of 6.5 dB, and a P1dB compression point of 31.5 dBm at a test frequency of 2.1 GHz. It features an OIP3 of 36 dBm and is housed in an industry-standard SOT-89 surface-mount package.

Feature Summary

• High dynamic range GaAs InGaP HBT technology for robust signal handling
• Integrated MMIC design requiring minimal external components
• Single +5V power supply operation simplifying circuit integration

Applications

• GPS receiver front-end amplification
• Sub-GHz wireless communication systems
• General RF power amplification stages

Procurement Notes

Verify component authenticity through authorized distributors as the part is listed as obsolete. Check for End-of-Life (EOL) notices and product change notifications from Analog Devices. Ensure replacement parts like the ADL5324ARKZ-R7 meet specific system requirements before procurement. Confirm RoHS compliance status and packaging type availability for current inventory sources.

Selection Notes

Select this component for applications requiring 1W output power in the 0.4-2.2 GHz band with low noise characteristics. Consider the SOT-89 package size for space-constrained designs. Evaluate thermal management needs due to power dissipation. Compare against newer alternatives if long-term supply stability is critical, as the original part is discontinued.

Part Context

This component belongs to the HMC series of monolithic microwave integrated circuits from Analog Devices. It is designed for high-performance RF applications where linearity and power efficiency are prioritized. The HMC452ST89 represents a legacy solution in the sub-GHz power amplifier market, often replaced by more modern integrated solutions offering enhanced integration levels.

Replacement Considerations

The ADL5324ARKZ-R7 is identified as a manufacturer-recommended replacement. Verify pin compatibility and electrical parameter alignment before substitution.