HMC499LC4

Overview

The HMC499LC4 is a GaAs PHEMT MMIC medium power amplifier from Analog Devices Inc., designed for SMD/SMT installation in an LGA-24 package. It operates within the 21 GHz to 32 GHz frequency range, providing 17 dB gain and a noise figure of 6 dB. The device requires a 5 V supply with a current draw of 200 mA. Key performance metrics include a P1dB compression point of 23 dBm, an OIP3 of 34 dBm, and an input return loss of 10 dB. Power dissipation is rated at 2.25 W. It functions as a single-channel RF amplifier suitable for high dynamic range applications.

Feature Summary

• High dynamic range GaAs PHEMT MMIC construction
• Leadless Pb-free RoHS compliant SMT packaging
• Integrated medium power amplification capabilities

Applications

• Point-to-point radio links
• Test and measurement equipment
• Military radar systems

Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm RoHS compliance and lead-free specifications match project requirements. Ensure handling procedures account for moisture sensitivity classification during storage and reflow soldering processes. Validate that the LGA-24 footprint aligns with existing PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component for designs requiring wideband operation between 21 and 32 GHz with moderate output power. Consider the 5 V supply requirement and 200 mA current consumption for power budget calculations. The LGA-24 package necessitates specific thermal management strategies due to 2.25 W power dissipation. Evaluate the 6 dB noise figure against system sensitivity needs for low-noise front-end stages.

Part Context

This part belongs to the HMC499 series of medium power amplifiers manufactured by Analog Devices Inc. It utilizes Gallium Arsenide (GaAs) technology optimized for microwave frequencies. The LC4 suffix indicates the specific leadless surface-mount package variant. It serves as a specialized RF solution distinct from general-purpose amplifiers, targeting high-frequency communication infrastructure.

Replacement Considerations

HMC498LC4 offers similar functionality but operates in the 17-24 GHz range with different electrical characteristics.