HMC519LC4

Overview

The HMC519LC4 is a high dynamic range GaAs pHEMT MMIC Low Noise Amplifier (LNA) housed in a leadless 4 x 4 mm ceramic surface mount package. The amplifier operates between 18 and 31 GHz, providing 14 dB of small signal gain, 3.5 dB noise figure and output IP3 of +23 dBm, while requiring only 75 mA from a +3V single supply. The P1dB output power of +11 dBm enables the LNA to function as a LO driver for balanced, I/Q or image reject mixers.

Feature Summary

• High dynamic range GaAs pHEMT MMIC technology
• Internally matched to 50 Ohms with DC blocked I/Os
• Capable of functioning as an LO driver for various mixer topologies

Applications

• Point-to-Point Radios
• Point-to-Multi-Point Radios & VSAT
• Test Equipment & Sensors
• Military & Space

Procurement Notes

Verify the specific suffix (e.g., TR, R5) against official Analog Devices documentation to confirm packaging type and reel specifications. Ensure the procurement order matches the exact part number variant required for the intended PCB layout and assembly process. Cross-reference datasheet revision dates to confirm parameter consistency.

Selection Notes

Select this component when a low noise figure and high linearity are required in the 18-31 GHz range. The single +3V supply simplifies power management compared to multi-supply alternatives. Consider the ceramic package size and thermal characteristics for board integration in microwave radio and VSAT designs.

Part Context

The HMC519LC4 belongs to the Hittite Microwave Corporation family, now integrated into Analog Devices. It serves as a specialized RF front-end solution designed for high-frequency applications where signal integrity and minimal noise addition are critical performance factors.

Replacement Considerations

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