Tektronix Keithley 4200A-SCS - Page 78

Section 4: Using a Model 590 C-V Analyzer Model 4200A-SCS Prober and External Instrument Control
4-16 4200A-913-01 Rev. A December 2020
Model
Measurement model:
▪ Series model: 0
▪ Parallel model: 1
Filter
Enables or disables the analog filter:
▪ Disable: 0
▪ Enable (can minimize the amount noise in the readings, but increases
measurement time): 1
ReadingRate
The reading rate used to acquire the measurements (0 to 4); see Details
C
Output: The measured capacitance
V
Output: The bias voltage used
G_or_R
Output:
▪ Parallel measurement model: G_or_R is the measured conductance
▪ Series measurement model: G_or_R is the measured resistance
Details
This user module makes a single, fixed-bias capacitance and conductance measurement. The default
parameters for the 590-cmeas UTM, which uses the Cmeas590 user module, are shown in the
following figure.
Figure 60: Cmeas590 (cmeas UTM parameters)
In general, the 590 is set to source 5 V for 2 seconds, then make a measurement, as shown in the
following figure.
Figure 61: Cmeas590 measurement