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// Test and Measurement Connectors

Keithley Triax Connector

Keithley triaxial connectors have three concentric conductors used on picoammeters and source-measure units. The Guard conductor driven at signal potential eliminates cable leakage currents for sub-picoamp measurements.

// Specifications
Standard
Keithley triaxial
Conductors
3 inner signal guard outer ground
Measurement
Sub-picoamp to milliamp
Frequency
DC typically
Use Case
Keithley 6430 6485 picoammeter semiconductor characterization
Advantage
Guard eliminates cable insulation leakage
// Pin Reference Table
Pin Name Function Type
1 Inner HI signal conductor ADC
2 Guard Guard at signal potential eliminates leakage I/O
3 Outer LO ground outer shield GND