HMC921LP4E

Overview

The HMC921LP4E is a general-purpose RF amplifier manufactured by Analog Devices Inc., designed for operation within the 400 MHz to 2.7 GHz frequency range. It is housed in a 24-QFN (4x4) surface-mount package with exposed pads. The device operates on a single 5V supply and draws approximately 400mA of current. Key electrical specifications include a typical gain of 9dB, a P1dB output power of 33.3dBm, and a noise figure of 6.5dB. This component is intended for high-performance signal amplification applications.

Feature Summary

• Provides broadband amplification across a wide frequency spectrum from 400 MHz to 2.7 GHz
• Delivers high linearity performance with a P1dB specification of 33.3 dBm
• Integrates low noise characteristics suitable for sensitive receiver front-ends

Applications

• GPS signal processing and amplification
• General-purpose RF signal chain integration
• Wireless communication system front-ends

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm that the specific suffix LP4E matches the required 24-QFN package configuration. Review the latest Product Change Notification (PCN) documents for any manufacturing origin updates or material changes. Ensure compatibility with existing board layouts regarding the exposed thermal pad requirements.

Selection Notes

Select this component when a wideband amplifier covering sub-GHz to UHF frequencies is required. Consider the 400mA supply current for power budget calculations. Evaluate the 6.5dB noise figure against system sensitivity requirements. Verify that the 24-QFN footprint aligns with available PCB real estate and thermal management capabilities.

Part Context

This part belongs to the HMC921 series of RF amplifiers from Analog Devices. It is specifically engineered for broad-spectrum applications requiring stable gain and low noise. The device represents a solution for integrating amplification stages into compact wireless modules without sacrificing performance over wide bandwidths.

Replacement Considerations

The manufacturer has issued an End-of-Life (EOL) notice for this product. Designers must evaluate alternative components from the same family or newer generations that offer compatible pinouts and electrical specifications to ensure long-term supply stability.