Model 4200A-SCS Source-Measure Unit (SMU) User's Manual
Section 3: Setting up SMUs in Clarius
4200A-SMU-900-01 Rev. A December 2020
3-23
Figure 48: Pulse Mode examples
Range (Measure Current)
The measure range determines the full-scale measurement span that is applied to the signal. It
affects both the accuracy of the measurements and the maximum signal that can be measured.
The current range options are:
•
Auto:
The instrument automatically optimizes the measurement range as the test progresses.
This option provides the best resolution when the measurements span several decades. However,
time delays can occur with range changes that can limit the measurement speed.
•
Limited Auto:
A compromise between Auto and a fixed-range option. It allows you to specify the
minimum range that the SMU uses when it automatically optimizes the current measurements.
This option reduces test time when you do not need maximum resolution at minimum currents.
•
Best Fixed:
The instrument automatically selects a single measurement range based on the
current or voltage compliance value.
•
Specific ranges:
You can select a fixed measurement range.
