HMC941A-SX

Overview

The HMC941A-SX is a broadband 5-bit GaAs IC digital attenuator MMIC chip manufactured by Analog Devices Inc. It operates within a frequency range of 100 MHz to 30 GHz and provides a total attenuation value of 15.5 dB. The device features an LSB step of 0.5 dB with bit values of 0.5, 1, 2, 4, and 8. Typical insertion loss is less than 4 dB. The component is supplied in a die package configuration.

Feature Summary

• Broadband operation covering frequencies from 0.1 GHz to 30 GHz
• 5-bit digital control architecture for precise attenuation steps
• GaAs MMIC technology for high-frequency performance

Applications

• RF signal chain integration
• Wireless communication systems
• Test and measurement equipment

Procurement Notes

Verify the specific suffix requirements for your application, as the HMC941A series includes variants such as the standard HMC941A and the SMD/SMT packaged HMC941A-SX. Confirm that the die form factor aligns with your assembly capabilities. Check current availability status, as supply constraints may affect lead times. Ensure compatibility with your system's voltage and control logic before procurement.

Selection Notes

Select the HMC941A-SX when a wide bandwidth up to 30 GHz is required with low insertion loss. The 5-bit resolution offers a balance between control precision and complexity. Consider the die package type if custom mounting solutions are available. Evaluate the GaAs technology benefits against other semiconductor materials for your specific noise and power requirements.

Part Context

This component belongs to the HMC941 family of digital attenuators. It is designed as a monolithic microwave integrated circuit (MMIC) using Gallium Arsenide (GaAs) technology. The part is intended for use in applications requiring variable attenuation across a broad microwave spectrum.

Replacement Considerations

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