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:
40 two-wire or 80 single-ended multiplexing channels
Optically isolated FET switching for long lifetime and reliability
Fast switching with low leakage current and low capacitance
Handles up to 100 V, suitable for precision electronic testing
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.





