Keithley 2651A Reference Manual

Section 3: Functions and features Model 2651A High Power System SourceMeter® Instrument Reference Manual
3-28 2651A-901-01 Rev. A / March 2011
Pulsing in the extended operating area (EOA)
Pulse sweeps can be performed outside of the standard operating area by setting the appropriate
compliance level. Review the specifications for the Model 2651A to determine the maximum current
and voltage values available in pulse mode. When pulsing in the extended operating area (EOA), the
source-measure unit (SMU) will force the pulse to end early if the pulse width exceeds the maximum
value. It will also delay the next source action as necessary to stay within the duty cycle capabilities of
the SMU. The following figure and table illustrate the pulse regions for a SMU when pulsing in the
EOA. Refer to the Model 2651A specifications on the Keithley Instruments website
(http://www.keithley.com) for the latest pulse width and duty cycle information.
Figure 41: Pulsing in the extended operating area (EOA)
+20A
+30A
+50A
–50A
–10A
+10A
+5A
–5A
–20A
–30A
+10V
–10V
+20V–20V 0V
0A
+40V–40V
Pulse
DC
3
4
7
6
5
2
1
Pulse region specification
Region
(quadrant
diagram)
Region
maximum
Maximum
pulse width
Maximum
duty cycle
1 5 A at 40 V DC, no limit 100%
1 10 A at 20 V DC, no limit 100%
1 20 A at 10 V DC, no limit 100%
2 30 A at 10 V 1 ms 50%
3 20 A at 20 V 1.5 ms 40%
4 10 A at 40 V 1.5 ms 40%
5 50 A at 10 V 1 ms 35%
6 50 A at 20 V
330 μs
10%
7 50 A at 40 V
300 μs
1%

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English