Model 4225-RPM and Model 4225-RPM-LR Remote Pulse Module Instructions
PA-1086 Rev. A October 2020
7
Typical 4-terminal device connections
The following figure shows 4225-RPM or 4225-RPM-LR connections to a 4-terminal device using three optional
MMPC cable kits.
Figure 7: Typical MOSFET connection
RPM lower current ranges
The 4225-RPM or 4225-RPM-LR extends the lower current ranges of the 225-PMU. This is especially important
for devices like diodes or transistors that have I-V curves that extend over several decades of current. The
autorange feature of the 4225-RPM and 4225-RPM-LR enables automatic range selection while a pulsed I-V
sweep is in progress. This feature provides optimal current measurement while the device signal transitions
through the different current levels.
The RPM adds the following current ranges to the 4225-
PMU: 100 nA, 1 μA, 10 μA, 100 μA, 1 mA, and 10 mA.
