HMC499LC4TR

Overview

The HMC499LC4TR is a medium power RF amplifier operating from 21 GHz to 32 GHz. It utilizes GaAs pHEMT technology in a 24-lead LGA package. Key electrical specifications include a gain of 17 dB, a noise figure of 6 dB, and an input return loss of 10 dB. The device delivers a P1dB compression point of 23 dBm and an OIP3 of 34 dBm. It operates on a single 5 V supply with a current consumption of 200 mA. The unit supports a temperature range from -40°C to +85°C.

Feature Summary

• Wideband operation across the 21 to 32 GHz frequency spectrum
• High linearity performance with significant output power capabilities
• Low noise figure suitable for sensitive receiver front ends
• Single positive voltage control simplifies biasing requirements

Applications

• Point-to-point radio systems
• Satellite communication terminals
• Military radar subsystems
• Test and measurement equipment

Procurement Notes

Verify component authenticity through authorized Analog Devices channels due to limited availability status. Confirm RoHS compliance details prior to integration. Ensure ESD protection protocols are strictly followed during handling and assembly. Validate that the specific lot matches design requirements for high-frequency reliability.

Selection Notes

Select this component for applications requiring wideband amplification in the K/Ka band. Consider the 24-lead LGA package for surface mount integration. Evaluate thermal management needs given the 2.25 W power dissipation. Compare against alternatives if lower noise or higher output power is required outside the specified range.

Part Context

This part belongs to the Hittite (now Analog Devices) HMC499 series of medium power amplifiers. These devices are designed for high-performance wireless infrastructure. The series emphasizes compact form factors and robust GaAs processing. They serve as critical building blocks for high-frequency signal chain implementations.

Replacement Considerations

Check for direct pin-compatible substitutes within the HMC499 family. Verify equivalent electrical parameters such as gain flatness and power handling. Ensure package dimensions match existing PCB footprints. Consult official documentation for any functional differences between variants.