Keithley 4200A-SCS Reference Manual page 1128

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Model 4200A-SCS Parameter Analyzer Reference Manual

This user module is used for 590 cable compensation. You enter precise capacitance source values.

When this test is run, the capacitance source values are saved to a user-specified file. The user

module to perform cable compensation (CableCompensate590) can then access the capacitance

source values from this file.

The default parameter values for this user module are shown in the following figure. These are

suggested low and high values that can be used for cable compensation. You must replace these

values with the calibration values of the capacitance sources.

Example 1: Cable compensation

If the file defined for CabCompFile does not exist, or there is no path specified (null string), the

default compensation parameters are used. When entering the path, use two backslash (\\)

characters to separate each directory. For example, if your cable file is in

C:\calfiles\590cal.dat, you enter the following:

C:\\calfiles\\590cal.dat

If a switch matrix to route signals is being controlled by a connection action (for example, connect),

there is no need to connect InputPin and OutPin. Set these parameters to 0.

4200A-901-01 Rev. C / February 2017

Figure 569: save-cap-file action and SaveCableCompCaps590 user module

(on page B-6) demonstrates how cable compensation is done.

Appendix B: Using a Model 590 C-V Analyzer