HMC941-SX

Overview

The HMC941-SX is a broadband, 5-bit GaAs IC digital attenuator MMIC chip manufactured by Analog Devices Inc. It operates within a frequency range of 0.1 GHz to 30 GHz and features an attenuation value of 15.5 dB with a typical insertion loss of less than 4 dB. The device utilizes a 50 Ohm impedance and is supplied in a die package configuration. It is designed for high-performance RF signal chain applications requiring precise digital control over signal amplitude across a wide bandwidth.

Feature Summary

• Broadband operation covering 0.1 GHz to 30 GHz
• 5-bit digital control architecture for precise attenuation steps
• GaAs MMIC technology for low insertion loss
• Die package format for flexible integration

Applications

• RF signal chain management
• Test and measurement equipment
• Wireless communication systems
• Phased array antenna systems

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix '-SX' denotes the die form factor as documented in official datasheets. Ensure handling procedures account for the bare die nature of the component, including appropriate substrate mounting and thermal management strategies during assembly.

Selection Notes

Select the HMC941-SX when a wide frequency range up to 30 GHz is required alongside precise 5-bit digital attenuation control. Consider this die-level component for designs where board space is constrained and custom packaging solutions are feasible. Evaluate the 15.5 dB total attenuation capability against system dynamic range requirements before finalizing the design.

Part Context

This component belongs to the HMC941 family of digital attenuators from Analog Devices. The '-SX' suffix specifically identifies the unencapsulated die version, distinct from packaged variants like the HMC941ALP4E. This family provides broadband performance suitable for modern RF applications requiring compact, high-frequency signal processing capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices directly for current availability and potential obsolescence notices, as some related variants may have different status.