HMC985ALP4KETR

Overview

The HMC985ALP4KETR is a GaAs MMIC voltage-variable attenuator manufactured by Analog Devices Inc. It operates within a frequency range of 10 GHz to 50 GHz and provides a maximum attenuation value of 40 dB. The device features a 24-VFQFN exposed pad package and maintains a system impedance of 50 Ohms. Designed for high-frequency signal control, this component utilizes silicon-based technology integrated into a gallium arsenide monolithic microwave integrated circuit structure.

Feature Summary

• Absorptive GaAs MMIC architecture for stable signal attenuation
• Voltage-controlled operation enabling precise signal level adjustment
• Wideband performance covering millimeter-wave frequencies

Applications

• Millimeter-wave test and measurement equipment
• Wireless communication systems requiring variable gain control
• Phased array antenna beamforming networks

Procurement Notes

Verify the specific suffix 'A' in the part number against official Analog Devices documentation to confirm the exact electrical specifications and pinout configuration. Ensure that the required operating frequency range aligns with the 10-50 GHz specification provided in the datasheet. Confirm package compatibility with the 24-VFQFN footprint before integration.

Selection Notes

Select this component when designing circuits requiring wideband attenuation up to 50 GHz. Consider the thermal management requirements associated with the exposed pad package. Evaluate the control voltage interface to ensure compatibility with the driving circuitry. Verify that the 50 Ohm impedance matches the system design requirements for optimal signal integrity.

Part Context

This component belongs to the HMC985 series of voltage-variable attenuators from Analog Devices. The series includes variants such as the HMC985LP4KETR, which may differ in frequency range or attenuation characteristics. The HMC985ALP4KETR specifically targets applications demanding operation across the K and Ka bands with high linearity and low power consumption.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for direct replacements or cross-reference options based on specific electrical requirements.