The Agilent/Keysight 34937A is a high-density 40×20 matrix switch module for the Keysight 34980A Multifunction Switch/Measure Unit. It provides flexible signal routing across 800 relays, enabling complex test configurations in automated test equipment and laboratory environments. The module handles DC and AC signals up to 300 V, 1 A (carry) / 0.5 A (switch), with maximum switched power of 150 W and signal bandwidth to 10 MHz.
Technical Specifications
• Switching architecture: 40×20 matrix
• Number of relays: 800
• Maximum switching voltage (DC/AC RMS): 300 V
• Maximum switching current (DC/AC RMS): 1 A carry, 0.5 A switch
• Maximum switched power: 150 W
• Contact resistance: <0.15 Ω initial, <0.25 Ω after 1 million operations
• Actuation time: <7 ms typical
• Release time: 10¹⁰ Ω typical
• Capacitance (open contacts): <2 pF typical; (terminals to chassis): 60 dB at 1 MHz
• Signal bandwidth: Up to 10 MHz (attenuated signals)
• Mechanical life: 50 million operations
• Electrical life: 1 million operations at rated load
– Key Features
• Low contact resistance with stable performance across 1 million electrical operations
• Fast switching with 7 ms actuation and 4 ms release times
• Excellent isolation and minimal capacitive coupling for signal integrity
• Support for analog, digital, and RF signal routing
• Screw-type terminal connections for reliable external wiring
– Typical Applications
• Automated test equipment with dynamic signal path requirements
• Multi-point device and subsystem testing in production environments
• Laboratory signal routing in complex test configurations
• Mixed-signal test scenarios requiring RF, analog, and digital switching
– Compatibility & Integration
The 34937A interfaces directly with the Keysight 34980A mainframe internal bus system. It integrates with Keysight IO Libraries and SCPI command set for programming and control, supporting integration across various ATE software platforms.
