HMC903

Overview

The HMC903 is a GaAs pHEMT MMIC Low Noise Amplifier designed for operation in the 6 GHz to 17 GHz frequency range. It requires a single 3.5 V power supply and draws 80 mA of current. The device provides a typical gain of 18.5 dB with a noise figure of 1.7 dB. Key performance metrics include a P1dB compression point of 14.5 dBm, an OIP3 of 25 dBm, and an input return loss of 11 dB. Power dissipation is rated at 450 mW. It operates within a temperature range of -40°C to +85°C and is available in a QFN-16 surface-mount package.

Feature Summary

• Utilizes GaAs pHEMT technology for high-performance RF amplification
• Provides low noise figure suitable for sensitive receiver front-ends
• Features linear output characteristics with defined compression points

Applications

• Point-to-point microwave radio links
• Satellite communication ground stations
• Electronic warfare systems
• Test and measurement equipment

Procurement Notes

Verify the specific suffix (e.g., LP3E vs. LP3ETR) to ensure correct packaging format. Confirm availability status as distribution channels may report limited stock or discontinuation. Cross-reference the manufacturer datasheet for updated electrical specifications and thermal management requirements before finalizing procurement orders.

Selection Notes

Select this component when a wideband LNA covering 6 to 17 GHz is required. Consider the 1.7 dB noise figure for signal integrity. Evaluate the 18.5 dB gain against system link budget needs. Ensure the QFN-16 package fits the PCB layout constraints. Verify that the 3.5 V supply voltage aligns with the system power architecture.

Part Context

The HMC903 belongs to the HMC903G series of monolithic microwave integrated circuits. It is manufactured by Analog Devices Inc. using GaAs process technology. This family targets high-frequency applications requiring compact size and consistent performance across a broad bandwidth without external matching components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.