Section 3: Source-measure hardware
Model 4200A-SCS Parameter Analyzer Reference Manual
3-6
4200A-901-01 Rev. C / February 2017
I-Source operating boundaries
Limit lines are boundaries that represent the operating limits of the SMU for a certain quadrant of
operation. The operating point can be anywhere inside (or on) these limit lines. The limit line
boundaries for the other quadrants are similar.
The next two figures show the operating boundaries for the I-Source. Only the first quadrant of
operation is covered; operation in the other three quadrants is similar.
As shown in the next figure, the 4200-SMU can output up to 105 mA at 21 V, or 10.5 mA at 210 V.
The 4210-SMU can output up to 1.05 A at 21 V, or 105 mA at 210 V.
Figure 33: 4200-SMU and 4210-SMU I-source output characteristics
The next figure shows the limit lines for the I-source. The current source limit line represents the
maximum source value possible for the selected current source range. For example, the current
source limit line is at 105 mA on the 100 mA current source range. The voltage compliance limit line
represents the actual compliance that is in effect.
Figure 34: 4200-SMU and 4210-SMU I-source limit lines
