Keithley SourceMeter 2430

2400 Series SourceMeter
®
User’s Manual Source-Measure Concepts 6-25
Figure 6-11
I-Source operating examples
Voltage Limit
Load Line
Operating
Point
Current Source
Load Line
I-Source (I
S
)
V-Meter
(V
M
)
20V
40V
100mA
200Ω DUT Load Line (R)
V
M
= I
S
· R
= (100mA) (200Ω)
= 20V
A. Normal I-Source Operation
Voltage Limit
Load Line
Operating
Point
Current Source
Load Line
I-Source (I
S
)
V-Meter
(V
M
)
40V
100mA
I
S
= V
M
/ R
= 40V / 800Ω
= 50mA
B. I-Source In Compliance
50mA
800Ω
DUT Load Line (R)
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