The Keysight 34925A Optically Isolated FET Multiplexer Module provides a flexible, high-speed switching solution for the 34980A Multifunction Switch/Measure Unit. With 40 two-wire or 80 single-ended channels, it is ideal for routing precision low-level signals while maintaining signal integrity. Using optically isolated field-effect transistors (FETs), the module eliminates mechanical relay wear, offering extremely high switching lifetimes and reliable operation. It supports switching up to 100 V with low leakage and fast settling times, making it suitable for semiconductor testing, high-throughput automated measurements, and sensitive electronic device characterization. Its isolation design ensures safe operation when working with mixed or floating signal sources.
Key Features:
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40 two-wire or 80 single-ended multiplexing channels
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Optically isolated FET switching for long lifetime and reliability
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Fast switching with low leakage current and low capacitance
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Handles up to 100 V, suitable for precision electronic testing
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Seamless integration with Keysight 34980A multifunction units
Compatible Measurements/Chemicals:
Supports low-level DC/AC signal routing, semiconductor and electronic test applications. Not designed for direct chemical exposure.
Included Accessories:
Ships with detachable terminal blocks and user manual.
Compliance:
Meets ISO, CE, and Keysight quality standards; fully compatible with GLP-regulated labs.
Benefits for Lab Users:
The Keysight 34925A provides engineers and researchers with a robust, high-speed multiplexer designed to maximize throughput while protecting signal integrity. Its optically isolated FET architecture ensures long operational life, making it especially advantageous for high-volume or long-duration testing environments where mechanical relay wear is a concern.





