Figure 8-12 Source V Configuration; Measure Only (V Or I); Source V - Keithley 2601 Reference Manual

Series 2600 System SourceMeter® Instruments Reference Manual

Source V

When configured to source voltage (V-Source) as shown in
functions as a low-impedance voltage source with current limit capability and can measure current
(I-Meter) or voltage (V-Meter).
Sense circuitry is used to continuously monitor the output voltage and make adjustments to the
V-Source as needed. The V-Meter senses the voltage at the input/output terminals (2-wire local
sense) or at the DUT (4-wire remote sense using the sense terminals) and compares it to the
programmed voltage level. If the sensed level and the programmed value are not the same, the
V-Source is adjusted accordingly. Remote sense eliminates the effect of voltage drops in the test
leads ensuring that the exact programmed voltage appears at the DUT.
The voltage error feedback to the V-Source is an analog function. The source error amplifier is
used to compensate for IR drop in the test leads.
Figure 8-12
Source V configuration

Measure only (V or I)

Figure 8-13
ammeter. As shown in
setting it to source 0A and measure voltage.
2600S-901-01 Rev. C / January 2008
shows the configurations for using the SourceMeter exclusively as a voltmeter or
Figure 8-13A, the SourceMeter is configured to measure voltage-only by
Return to Section Topics
Section 8: Source-Measure Concepts
Figure 8-12, the SourceMeter
8-17