Tektronix KEITHLEY 2600B Series

Series 2600B System SourceMeter® instrument Reference Manual Section 5: Theory of operation
2600BS-901-01 Rev. F/August 2021 5-9
Load considerations (V-source)
The boundaries within which the 2600B operates depend on the load (device-under-test, or DUT) that
is connected to the output. The following figures show operation examples for resistive loads that are
2 kΩ and 800 Ω, respectively. For these examples, the SMU is programmed to source 10 V and limit
current (10 mA).
In the following figure, the SMU is sourcing 10 V to the 2 kΩ load and subsequently measures 5 mA.
The SMU is programmed to limit power (60 mW). As shown, the load line for 2 kΩ intersects the 10 V
voltage source line at 5 mA. The current compliance limit and the power compliance limit are not
reached (the SMU is not limited through its compliance settings).
Figure 67: Normal voltage source operation
I
M
= V
S /
R
= 10 V / 2 kΩ)
= 5 mA