HMC941LP4

Overview

The HMC941LP4 is a broadband 5-bit GaAs IC digital attenuator MMIC chip in a leadless surface mount package. It operates from 0.1 to 33 GHz with an insertion loss of less than 4 dB typical and attenuation up to 15.5 dB. The device features a 0.5 dB least significant bit (LSB) step size, 50 Ohm impedance, and single-channel configuration. It functions within a temperature range of -40°C to +85°C and requires a 5 V operating supply voltage.

Feature Summary

• Broadband operation covering 0.1 to 33 GHz frequency range
• 5-bit digital control with 0.5 dB LSB resolution
• GaAs MMIC technology for high performance
• Leadless surface mount packaging

Applications

• Wireless communication systems
• Test and measurement equipment
• Military radar systems
• Satellite communications

Procurement Notes

Verify the specific suffix (e.g., LP4 vs LP4E) against the official Analog Devices datasheet to ensure correct package type and electrical specifications. Confirm RoHS compliance status and moisture sensitivity level prior to ordering. Check current availability as distribution may be limited or subject to factory special orders.

Selection Notes

Select this component when a wide bandwidth up to 33 GHz is required with precise digital attenuation control. The 5-bit resolution offers fine adjustment capabilities suitable for complex signal processing. Ensure the design accommodates the 5 V supply requirement and thermal management for the QFN-24 package.

Part Context

The HMC941 series represents Analog Devices' GaAs MMIC digital attenuators designed for high-frequency applications. This family provides robust performance across microwave bands, utilizing advanced semiconductor processes to achieve low insertion loss and high linearity in compact packages.

Replacement Considerations

HMC941ALP4E is a verified substitute part number within the same product family offering identical functional specifications.