Tektronix Keithley 4225-PMU - Four-Terminal Device Connections

Model 4200A
-SCS Pulse Card (PGU and PMU) User's Manual Section 2:
Connections
4200A-PMU-900-01 Rev. B March 2023 2-13
Four-terminal device connections
To test a four-terminal device, two PMUs are usually required. The following figure shows the four
PMU channels connected to a four-terminal MOSFET. This configuration enables you to have
complete flexibility to enable pulsing and measuring at any terminal on the device. Notice that the
shields of the SMA cables from all four channels are connected as closely as possible to the device
under test.
Figure 13: Four-terminal device connection to two PMUs