Appendix B: Using a Model 590 C-V Analyzer
Model 4200A-SCS Parameter Analyzer Reference Manual
B-14
4200A-901-01 Rev. C / February 2017
Procedure
For each range and test frequency specified by the input parameters:
1. You are prompted to open the circuit so that an offset capacitance measurement can be made.
2. When the offset capacitance measurement is completed, you are prompted to connect the low
value capacitor for the selected range. The system does the low value capacitor compensation.
3. You are prompted to connect the high value capacitor for the selected range. The system does
the high value capacitor compensation.
4. You are prompted to reconnect the low capacitor.
5. The nominal and measured values are displayed in a dialog box. You can:
Select
Cancel
to abort the procedure if the results are not correct. No changes to the cable
compensation file occur.
Select
Save
to save the cable compensation values.
Also see
None
Cmeas590 user module
The
Cmeas590
routine measures capacitance and conductance using the Keithley Instruments 590 C-V Analyzer.
You can make an offset correction measurement and use cable compensation.
Usage
status
= Cmeas590(char *
CabCompFile
, char *
InstIdStr
, int
InputPin
, int
OutPin
, int
OffsetCorrect
, int
Frequency
, double
DefaultBias
, double
StartTime
, double
Range
, int
Model
, int
Filter
, int
ReadingRate
, double *
C
, double *
V
, double
*
G_or_R
);
status
Returned values; see
Details
CabCompFile
The complete name and path for the cable compensation file; see
Details
InstIdStr
The CMTR instrument ID;
CMTR1
,
CMTR2
,
CMTR3
, or
CMTR4
, depending on your
system configuration
InputPin
The DUT pin to which the 590 input terminal is attached (
−
1 to 72); if a value of less
than 1 is specified, no switch matrix connection is made; see
Details
OutPin
The DUT pin to which the 590 output terminal is attached (
−
1 to 72); if a value of
less than 1 is specified, no switch matrix connection is made; see
Details
OffsetCorrect
Determines if an offset correction measurement should be made:
•
Do not make offset measurement:
0
•
Make offset measurement:
1
Frequency
The measurement frequency to use:
•
100 kHz:
0
•
1 MHz:
1
DefaultBias
The DC bias to use for the measurement:
−
20 to +20 V
StartTime
The amount of time to delay after applying the
DefaultBias
voltage step
(0.001 s to 65 s)
Range
The measurement range to use: 1 to 4; see
Details
Model
Measurement model:
•
Series model:
0
•
Parallel model:
1
