Keithley 4200A-SCS Reference Manual page 314

Model 4200A-SCS Parameter Analyzer Reference Manual
Current Range
The measure range determines the full-scale measurement span that is applied to the signal.
Therefore, 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.
Voltage (Report Voltage)
When this box is selected, the instrument measures voltage. Voltage is recorded in the Analyze sheet
and shown in the graph.
Voltage Range
The measure range determines the full-scale measurement span that is applied to the signal.
Therefore, it affects both the accuracy of the measurements and the maximum signal that can be
measured.
The measurement 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, range-change time delays limit the measurement speed.
•
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 from a list.
Voltage Column Name
The name of the voltage measurement. This is the name that Clarius displays in the Analyze
spreadsheet column for that measurement.
If you do not define a name, Clarius assigns a name. The assigned name is a combination of the
terminal label and V for voltage. For example, the Drain terminal is assigned the name DrainV.
This cannot be left blank. If it is left blank, Clarius uses the previous value.
The name is updated when the test is run. The results from previous tests that are available through
Run History are not changed to the new name.
4200A-901-01 Rev. C / February 2017
Section 6: Clarius
6-45