HMC344-SX

RF Switches Overview

The HMC344-SX is a broadband non-reflective GaAs MESFET SP4T switch chip from Analog Devices Inc. It operates from DC to 8.0 GHz with an insertion loss of 1.8 dB and typical off-isolation of 35 dB. The device functions within a temperature range of -55°C to +85°C. Packaged as a bare die in waffle format, it utilizes GaAs technology for high-performance RF switching applications.

RF Switches Feature Summary

• Broadband non-reflective GaAs MESFET design
• Single-Pole Quad-Throw (SP4T) configuration
• Operates from DC to 8.0 GHz frequency range

RF Switches Applications

• WLAN systems
• Test and measurement equipment
• Communications infrastructure

RF Switches Procurement Notes

Verify the specific suffix requirements for your application, as the SX designation indicates a bare die package requiring specialized handling. Confirm that the manufacturing status aligns with long-term supply needs, as availability may be limited or subject to obsolescence notices. Ensure compatibility with existing PCB layouts designed for this specific die footprint.

RF Switches Selection Notes

Select this component when a wide bandwidth up to 8 GHz is required in a compact form factor. The non-reflective nature minimizes signal distortion in sensitive RF chains. Consider the bare die format for custom packaging solutions where standard surface-mount packages are unsuitable for space constraints.

RF Switches Part Context

This part belongs to the HMC344 series of RF switches. It is distinct from packaged variants like the HMC344LP3ETR, which offers similar electrical performance in a 16-QFN package. The SX suffix specifically denotes the unencapsulated die version intended for advanced integration.

RF Switches Replacement Considerations

HMC344ALP3E is a direct replacement offering identical electrical specifications in a packaged form.