Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2461-901-01 A/November 2015 8-195
bufferName
The name of the reading buffer, which may be a default buffer (defbuffer1 or
defbuffer2
) or a user-defined buffer; defaults to
defbuffer1
sDelay
The amount of time that the instrument stays at bias level before each pulse (in
seconds): 0 to 10,000 s
offTime
The amount of time that the instrument stays at bias level after each pulse (in
seconds): 0 to 10,000 s
count
The number of pulse sweeps; default is 1:
• Infinite loop: smu.INFINITE
• Finite loop:
1
to
268435455
xBiasLimit
The current or voltage limit for the defined bias level:
• Current: 10 nA to 7.35 A
•
Voltage: 2 mV to 105 V
xPulseLimit
The current or voltage limit for the defined pulse level:
• Current: 10 nA to 10.5 A
•
Voltage: 2 mV to 105 V
failAbort
Determines if the sweep is stopped immediately if a limit is exceeded; options are:
• Abort the sweep if the source pulse limit is exceeded: smu.ON (default)
•
Complete the sweep if the source limit is exceeded: smu.OFF
dual
Determines if the sweep runs from start to stop and then from stop to start:
• Sweep from start to stop only: smu.OFF (default)
•
Sweep from start to stop, then stop to start: smu.ON
Details
Before configuring a pulse operation, configure your measure settings. Pulse operations use the
measure settings that were last defined before the pulse operation; you may get unexpected results if
you do not define the measure settings first.
When the pulse sweep is started, the instrument sources a specific voltage or current value to the
device under test (DUT). A pulse is output for each point of the sweep. If measurements are enabled,
a measurement is also made for each point of the sweep.
When the pulse sweep command is sent, it clears any existing trigger models, creates a source and
measure pulse configuration list, and populates the trigger model. To run the pulse sweep, initiate the
trigger model.
The pulse sweep continues until the source outputs the specified stop level. At this level, the
instrument performs another measurement and then stops the sweep.
When you specify a delay, a delay block is added to the pulse sweep trigger model.
The name of the source configuration list determines the name of the measure configuration list;
Meas is appended to the beginning of the name. If the name of your configuration list is greater than
28 characters, it is truncated to include only the first 28 characters (including the prefix Meas that is
added for the measure configuration list). For example, if the source configuration list is named
VoltagePulseLinearSweepList (27 characters), the resulting measure configuration list is
named MeasVoltagePulseLinearSweepList (31 characters). If the source configuration list is
named MyLongPulseNameSweepConfigList (30 characters), the resulting measure configuration
list is MeasMyLongPulseNameSweepConfigLi (32 characters).

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV