HMC451LP3

Overview

The HMC451LP3 is a GaAs PHEMT MMIC medium power amplifier from Analog Devices Inc., designed for RF applications between 5 and 18 GHz. It provides 18 dB gain with a noise figure of 7 dB. The device operates on a 5 V supply, drawing 120 mA current. Key performance metrics include a P1dB compression point of 19.5 dBm and an OIP3 of 28 dBm. It features an input return loss of 13 dB and dissipates 830 mW of power. The component is housed in a QFN-16 leadless SMT package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Utilizes GaAs PHEMT MMIC technology for efficient medium power amplification
• Operates across a wide frequency range from 5 to 18 GHz
• Housed in a leadless RoHS-compliant surface-mount package

Applications

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

Procurement Notes

Verify the specific suffix (e.g., LP3 vs LP3ETR) to ensure correct packaging format such as reel or cut tape. Confirm that the QFN-16 package dimensions match the PCB footprint requirements. Check the datasheet for any recent lifecycle status changes or obsolescence notices from Analog Devices before finalizing procurement plans.

Selection Notes

Select this component when a single-channel medium power amplifier is required for frequencies up to 18 GHz. Consider the 18 dB gain and 19.5 dBm P1dB output for link budget calculations. Ensure the design supports the 5 V supply voltage and 120 mA current consumption. Verify thermal management capabilities for the 830 mW power dissipation in the QFN-16 package.

Part Context

The HMC451LP3 belongs to the HMC451G series of GaAs PHEMT MMICs. It serves as a surface-mount version of the bare die HMC451, offering integrated thermal and electrical performance in a standardized QFN-16 package. This family targets high-frequency RF signal chain applications requiring compact form factors and reliable medium-power output stages.

Replacement Considerations

The HMC451LP3ETR is a variant of the same amplifier differing primarily in packaging format rather than electrical function.