HMC451

Overview

The HMC451 is a general-purpose GaAs PHEMT MMIC medium power amplifier designed for operation between 5 and 20 GHz. It provides 22 dB of gain with a noise figure of 7 dB. The device operates on a +5 V supply, drawing 127 mA of current. Key performance metrics include a saturated output power of +22 dBm, a P1dB compression point of 20 dBm, and an OIP3 of 32 dBm. Input return loss is specified at 14 dB. Power dissipation is rated at 1.2 W, with an operating temperature range from -55°C to +85°C.

Feature Summary

• Utilizes GaAs PHEMT technology for high-frequency performance
• Provides fixed 22 dB gain across the operational bandwidth
• Designed as a medium power amplifier for VSAT applications

Applications

• VSAT communication systems
• Point-to-point microwave links
• Test and measurement equipment

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Review datasheet specifications for handling requirements due to die package type. Ensure supply chain documentation matches the specific part number variant to avoid counterfeit risks.

Selection Notes

Select this component for designs requiring a single-stage medium power amplification solution in the 5-20 GHz range. Consider the die package format for PCB integration and thermal management. Evaluate the 127 mA supply current against system power budgets. Verify impedance matching networks align with the specified input return loss characteristics for optimal signal integrity.

Part Context

The HMC451 belongs to the HMC451G series of RF amplifiers manufactured by Analog Devices Inc. It is categorized under Wireless & RF Integrated Circuits. The device represents a monolithic microwave integrated circuit (MMIC) solution, distinct from packaged variants like the HMC451LC3TR-R5 which may offer different packaging options but similar core functionality.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.