HMC1126

Overview

The HMC1126 is a GaAs pHEMT MMIC distributed power amplifier operating from 2 GHz to 50 GHz. It delivers 11 dB of gain, 28 dBm output IP3, and 17.5 dBm P1dB output power. The device requires 65 mA from a 5 V supply. Key electrical parameters include an input return loss of 11.5 dB and a noise figure of 4 dB. It operates within a temperature range of -40°C to +85°C and dissipates 1.66 W of power.

Feature Summary

• Utilizes GaAs pHEMT technology for high-frequency performance
• Distributed amplifier architecture supports ultra-wideband operation up to 50 GHz
• Provides high linearity with 28 dBm OIP3

Applications

• VSAT systems
• Point-to-point microwave links
• Electronic warfare applications
• Test and measurement equipment

Procurement Notes

Verify the specific package variant (e.g., ACEZ vs. DIE) as availability differs significantly between packaged and bare die forms. Confirm RoHS compliance status through official documentation. Check for limited supply constraints or factory special order requirements directly with Analog Devices distributors. Ensure ECAD models are updated for integration.

Selection Notes

Select this component for applications requiring wide bandwidth coverage extending to 50 GHz. Consider the 5 V supply requirement and 65 mA current draw for power budgeting. Evaluate thermal management needs due to 1.66 W power dissipation. Compare against lower frequency alternatives if 50 GHz capability exceeds system requirements.

Part Context

Part of the HMC1126G series by Analog Devices. Designed as a monolithic microwave integrated circuit (MMIC). Often evaluated using the HMC1126-EVALZ development kit. Competes in the high-frequency power amplifier segment for millimeter-wave communications.

Replacement Considerations

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