HMC499LC4TR

Overview

The HMC499LC4TR is a medium power GaAs MMIC amplifier manufactured by Analog Devices Inc., designed for surface-mount applications in the LGA-24 package. It operates within a frequency range of 21 GHz to 32 GHz, delivering a typical gain of 17 dB with a noise figure of 6 dB. The device requires a 5 V supply and draws 200 mA of current. Key performance metrics include a P1dB compression point of 23 dBm and an OIP3 of 34 dBm. It supports an input return loss of 10 dB and handles up to 2.25 W of power dissipation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Utilizes Gallium Arsenide (GaAs) technology for high-frequency RF amplification
• Provides integrated medium power output capability suitable for direct drive applications
• Features a compact LGA-24 surface-mount package for efficient PCB integration

Applications

• Point-to-point microwave radio systems
• Satellite communication ground terminals
• Electronic warfare subsystems
• Test and measurement instrumentation equipment

Procurement Notes

Verify component authenticity through authorized distribution channels due to limited availability status. Confirm RoHS compliance details and moisture sensitivity levels prior to assembly. Ensure proper handling procedures are followed given the SMD nature of the LGA-24 package. Cross-reference datasheet specifications against current manufacturing revisions to guarantee compatibility with existing design parameters and thermal management requirements.

Selection Notes

Select this component when a single-stage medium power solution is required between 21 GHz and 32 GHz. The 17 dB gain and 23 dBm P1dB offer a balance between signal amplification and linearity for downstream stages. Consider the 200 mA current draw and 2.25 W power dissipation for adequate thermal design. The LGA-24 footprint necessitates specific layout guidelines for optimal RF performance and heat sinking.

Part Context

This part belongs to the HMC499 series of monolithic microwave integrated circuits from Analog Devices. It serves as the surface-mount variant of the bare die HMC499 model, offering identical electrical characteristics but packaged for automated assembly. The series targets Ka-band applications requiring reliable medium power generation without external matching networks.

Replacement Considerations

The bare die HMC499 offers equivalent electrical performance but requires custom packaging solutions. No direct pin-compatible surface-mount substitutes are documented in public sources.