HMC498LC4

Overview

The HMC498LC4 is a GaAs PHEMT MMIC medium power amplifier designed for the 17 to 24 GHz frequency range. It provides 22 dB gain with a noise figure of 4 dB. The device operates from a single 5 V supply, drawing 250 mA current. Key performance metrics include a saturated output power of +26 dBm, an input return loss of 13 dB, and a power dissipation of 1.62 W. It is housed in a leadless Pb-free SMT LGA-24 package.

Feature Summary

• High dynamic range GaAs PHEMT MMIC construction
• Leadless Pb-free surface mount technology (SMT) packaging
• Wideband operation across the 17 to 24 GHz spectrum

Applications

• VSAT communication systems
• Point-to-point microwave links
• Military electronic warfare applications
• Test and measurement equipment

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to assembly. Ensure storage conditions meet humidity requirements to prevent damage. Check for limited availability status as supply may be restricted or subject to factory special orders.

Selection Notes

Select this component for high-frequency applications requiring moderate output power within the K-band range. Consider the 24-pin LGA package for compact PCB layouts. Evaluate thermal management capabilities given the 1.62 W power dissipation. Ensure system impedance matching aligns with the specified 13 dB input return loss for optimal signal integrity.

Part Context

This part belongs to the HMC498G series of RF amplifiers manufactured by Analog Devices Inc. It utilizes Gallium Arsenide (GaAs) PHEMT technology to achieve high linearity and gain stability. The device is categorized under wireless and RF integrated circuits, specifically targeting medium power amplifier applications in satellite and terrestrial communications.

Replacement Considerations

HMC498LC4TR