HMC451LP3TR

Overview

The HMC451LP3TR is a GaAs pHEMT MMIC medium power amplifier manufactured by Analog Devices Inc. It operates within a frequency range of 5 to 20 GHz, with specific datasheet documentation citing an operational range of 5 to 18 GHz. The device provides a typical gain of 18 dB and delivers +21 dBm saturated output power. It requires a 5V supply voltage and draws approximately 127 mA of current. The component is housed in a leadless RoHS-compliant surface-mount package, specifically a 16-pin QFN (3x3 mm) configuration.

Feature Summary

• Utilizes GaAs pHEMT MMIC technology for efficient medium power amplification
• Designed for wideband operation across the 5 to 20 GHz spectrum
• Housed in a compact, leadless RoHS-compliant surface-mount package

Applications

• VSAT communication systems
• Point-to-point microwave links
• Electronic warfare applications

Procurement Notes

Verify the exact suffix designation when ordering, as packaging variations such as tape-and-reel or cut-tape may exist. Confirm the specific frequency range requirements against the official datasheet, as sources vary between 5-18 GHz and 5-20 GHz specifications. Ensure compatibility with the 16-QFN footprint during PCB layout. Check for current availability status as distribution channels may report limited stock or discontinuation for related variants.

Selection Notes

Select this component for designs requiring high linearity and moderate power output in the Ka-band and upper Ku-band frequencies. The integrated MMIC design simplifies matching network requirements compared to discrete solutions. Consider the thermal performance of the exposed pad in the QFN package for heat dissipation. Evaluate the 5V supply requirement against system power constraints. Compare gain and P1dB metrics against alternative amplifiers if higher output power or different bandwidths are required.

Part Context

This part belongs to the HMC451 family of RF amplifiers from Analog Devices. Variants include the bare die HMC451, the packaged HMC451LP3, and the tape-and-reel version HMC451LP3TR. Other family members like the HMC451LC3 offer similar electrical characteristics but may differ in packaging or specific tuning for applications such as GPS. The family is characterized by its use of GaAs pHEMT technology for robust RF performance.

Replacement Considerations

Direct substitutes include other Analog Devices MMICs in the same series, such as the HMC451LC3TR for similar performance in a compatible package. Cross-brand replacements require careful verification of pinout compatibility, impedance matching networks, and thermal management solutions due to differences in internal architecture and packaging dimensions.