Analog Devices Inc.

HMC641  

RF Switches

HMC641 Description

The HMC641 from Analog Devices Inc. is a high-performance SP4T (Single Pole 4 Throw) RF switch designed for demanding VSAT (Very Small Aperture Terminal) and broadband communication systems. Operating across a wide frequency range of 0Hz to 18GHz, this absorptive switch delivers exceptional linearity with an IIP3 of 40dBm and a P1dB of 24dBm, making it ideal for high-power applications. The device features low insertion loss (1.8dB) and high isolation (40dB), ensuring minimal signal degradation and superior channel separation. Packaged as a bare die, the HMC641 is optimized for integration into custom RF modules, though its obsolete status may require alternative sourcing for new designs.

HMC641 Features

• High Linearity: 40dBm IIP3 and 24dBm P1dB for robust performance in high-power RF systems.
• Low Insertion Loss: 1.8dB ensures efficient signal transmission.
• Broadband Operation: 0Hz–18GHz coverage for versatile applications.
• Absorptive Topology: Minimizes reflections, enhancing signal integrity.
• High Isolation: 40dB isolation reduces crosstalk between channels.
• 50Ω Impedance: Standard RF compatibility for seamless integration.
• Die Form Factor: Enables compact, custom RF module designs.

HMC641 Applications

The HMC641 excels in VSAT systems, military communications, test equipment, and satellite transceivers where high linearity and low loss are critical. Its 18GHz bandwidth makes it suitable for Ku-band and Ka-band applications, while its absorptive design ensures stability in frequency-agile systems. The die format is particularly advantageous for space-constrained or high-reliability environments, such as aerospace and defense platforms.

Conclusion of HMC641

The HMC641 stands out for its exceptional linearity, low loss, and broadband performance, making it a preferred choice for high-frequency RF switching. While now obsolete, its legacy in VSAT and military systems underscores its reliability. Engineers seeking alternatives should consider newer Analog Devices switches with similar specs but updated availability. For legacy systems, the HMC641 remains a benchmark in high-performance RF switching.

HMC641 Documents

Download datasheets and manufacturer documentation for HMC641

Datasheets :

HMC641      

PCN Obsolescence/ EOL :

Multiple Devices 23/Feb/2015       Updated Revision A 27/Jul/2015      

HTML Datasheet :

HMC641