5: Pulse measure and pulse generator units Model 4200A-SCS Parameter Analyzer
5-14 4200A-901-01 Rev. C / February 2017
Three-terminal device connections
A three-terminal device can be connected using either two or three PMU channels, depending on if
source and/or measuring must be performed at each device pin. An example of both channels of a
single PMU connected to a three-terminal MOSFET is shown in the next figure. In this example,
connect the gate terminal to channel 1 of the PMU and connect the drain terminal to channel 2.
Connect the source terminal to the outside shield of channel 2.
Figure 152: Three-terminal device connections to a PMU using both channels
If ultra-fast I-V sourcing and measuring is required at each device terminal, then a second PMU is
required for the source terminal. Up to four PMUs (eight channels) can be installed in one 4200A-
SCS mainframe.
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