HMC994A

Overview

The HMC994A is a GaAs distributed amplifier from Analog Devices, designed for wideband RF applications. It operates across a frequency range of 0 Hz to 30 GHz. The device delivers a typical gain of 15.5 dB with a noise figure of 3.5 dB. Key performance metrics include a P1dB compression point of 27.5 dBm and an OIP3 of 36 dBm. It requires a 10 V supply voltage and draws approximately 250 mA of current. The component is available in die form, utilizing GaAs technology for high-frequency signal amplification.

Feature Summary

• Utilizes GaAs distributed amplifier topology for wideband operation up to 30 GHz
• Provides high linearity with significant output power capabilities
• Designed for surface-mount integration in compact RF systems

Applications

• Wideband test and measurement equipment
• Military radar systems
• Electronic warfare applications
• Satellite communication ground stations

Procurement Notes

Verify availability status directly with Analog Devices or authorized distributors, as the HMC994A may be subject to limited supply conditions or factory special orders. Confirm that the specific die variant matches your PCB design requirements. Ensure all electrical parameters align with system specifications before finalizing procurement decisions.

Selection Notes

Select the HMC994A when broad bandwidth coverage extending to 30 GHz is required alongside moderate gain and high linearity. Consider the die package format and thermal management needs associated with GaAs MMICs. Evaluate alternative packaged variants like the HMC994APM5ETR if surface-mount convenience is preferred over bare die handling.

Part Context

The HMC994A belongs to the HMC994 series of high-performance RF amplifiers manufactured by Analog Devices. This series targets demanding microwave and millimeter-wave applications requiring consistent performance across wide frequency spans. The component represents a specialized solution for engineers needing reliable signal amplification in complex RF front-ends.

Replacement Considerations

The HMC994APM5ETR serves as a packaged equivalent within the same family, offering similar electrical characteristics in a 32-LFCSP package. Verify pin compatibility and thermal dissipation requirements when substituting between the bare die HMC994A and its packaged counterparts.