Tektronix KEITHLEY 2600B Series User Manual

Series 2600B System SourceMeter® instrument Reference Manual Section 5: Theory of operation
2600BS-901-01 Rev. F/August 2021 5-11
Figure 69: Voltage source operation in power compliance
V
S
= I
M
× R
= (6 mA)(800 Ω)
= 4.8 V
The following figure shows a voltage sweep on a resistive load of 800 Ω. For this example, the SMU
is programmed to sweep voltage to 10 V, limit current (6 mA), and limit power (50 mW). When
sweeping, the actual source output varies according to the programmed source value until the current
limit is reached. As the figure shows, the output sources the programmed value until placed in current
compliance at the 6 mA limit. The sweep then continues (programmed current source values increase
along the green sweep points line), but the output remains at the same value as when the SMU went
into voltage compliance. This continues until the programmed source value sweeps to a high enough
level that the power limit line is reached (50 mW). At this point, the current and voltage start to
decrease, lowering the current and voltage values along the DUT load line. When the last point is
swept (10 V), the actual output is 4 V at 5 mA.
Figure 70: Programmed voltage source sweep operation in current and power compliance

Tektronix KEITHLEY 2600B Series Specifications

General

Brand	Tektronix
Model	KEITHLEY 2600B Series
Category	Measuring Instruments
Language	English