HMC479ST89ETR

Overview

The HMC479ST89ETR is a SiGe HBT gain block amplifier from Analog Devices Inc., designed for surface-mount applications. It operates from DC to 5 GHz with a typical gain of 15 dB and a noise figure of 4 dB. The device requires an operating supply voltage of 8 V and draws 75 mA of current. Key performance metrics include a P1dB compression point of 22 dBm and an OIP3 of 33 dBm. Packaged in SOT-89, it is currently obsolete.

Feature Summary

• Utilizes Silicon Germanium Heterojunction Bipolar Transistor technology for robust RF performance.
• Provides high linearity suitable for demanding signal chain applications.

Applications

• General purpose RF amplification
• Wireless infrastructure components
• Test and measurement equipment

Procurement Notes

This component is officially discontinued and no longer manufactured by Analog Devices Inc. Procurement must rely on remaining stock from authorized distributors or secondary markets. Verify authenticity and storage conditions carefully due to the end-of-life status. Ensure that any available units match the exact suffix specifications required for your design implementation.

Selection Notes

Engineers should evaluate this part against active alternatives within the Analog Devices portfolio. Consider modern replacements that offer updated process technologies and guaranteed long-term availability. Review datasheet parameters such as gain flatness and power consumption to ensure compatibility with existing circuit designs before selecting substitute components.

Part Context

Part of the HMC series of monolithic microwave integrated circuits. Designed for broadband amplification needs in compact form factors. The ST89 suffix indicates the specific SOT-89 surface mount package configuration used for thermal and electrical connectivity.

Replacement Considerations

• ADL5601ARKZ-R7
• ADL5602ARKZ-R7