HMC156A

Overview

The HMC156A is a passive frequency doubler MMIC die designed for input frequencies ranging from 700 MHz to 2.4 GHz. It utilizes GaAs technology and requires no DC bias, featuring diode/balun architecture typical of Hittite mixers. The device offers a maximum conversion loss of 20 dB and supports a maximum continuous wave input power of 27 dBm. It operates within a temperature range of -55 °C to +85 °C and maintains a characteristic impedance of 50 Ω.

Feature Summary

• Passive operation requiring no DC bias voltage
• High suppression of fundamental and higher-order harmonics
• Miniature MMIC die construction for compact integration

Applications

• Wireless Local Loop systems
• LMDS, VSAT, and Point-to-Point Radios
• UNII & HiperLAN applications

Procurement Notes

Verify the specific package variant required, as the HMC156A base model is a bare die while variants like HMC156AC8 offer surface mount packaging. Confirm RoHS compliance status and lead times with authorized distributors, noting that some listings indicate obsolete or limited supply statuses for certain configurations.

Selection Notes

Select this component for high-frequency doubling needs within the 0.7 to 2.4 GHz input range. Ensure the design accommodates the bare die form factor if using the standard HMC156A, or choose an SMT variant for easier assembly. Verify thermal management capabilities for the specified operating temperature range and confirm impedance matching for 50 Ω systems.

Part Context

The HMC156A belongs to the Hittite Microwave (now Analog Devices) family of RF and microwave components. It shares underlying diode/balun technology with other Hittite MMIC mixers, emphasizing small size and passive functionality. This series targets wireless communication infrastructure requiring reliable frequency multiplication without active biasing.

Replacement Considerations

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