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.
| 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 |
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.