Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2461-901-01 A/November 2015 8-205
smu.source.pulsetrain()
This function defines a sequence of source pulses and creates a trigger model to generate the pulse train.
Type TSP-Link accessible
Affected by Where saved Default value
Function
Yes
Usage
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable, bufferName)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable, bufferName, sDelay)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable, bufferName, sDelay, offTime)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable, bufferName, sDelay, offTime, xBiasLimit)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable, bufferName, sDelay, offTime, xBiasLimit, xPulseLimit)
smu.source.pulsetrain(configListName, biasLevel, pulseLevel, pulseWidth, count,
measEnable, bufferName, sDelay, offTime, xBiasLimit, xPulseLimit, failAbort)
configListName
The name of the source configuration list that the sweep uses; this must be defined
before sending this command
biasLevel
Output level the instrument sources before the first pulse and returns to between
pulses (delay and off time):
• Current: -7.35 A to 7.35 A
•
Voltage: -105 V to 105 V
pulseLevel
The amplitude current or voltage from zero (not from the bias level):
• Current: -10.5 A to 10.5 A
•
Voltage: -105 V to 105 V
pulseWidth
The time at the amplitude level for each pulse:
• Extended operating area: 10 A at 100 V, 5 % duty cycle, maximum pulse
width: 1 ms, minimum pulse width 150 µs (load dependent)
• Normal operating area (DC): 99.99 % duty cycle, maximum pulse width
10,000 s, minimum pulse width 150 µs
count
The number of pulses in the pulse train; default is 1:
• Infinite loop: smu.INFINITE
•
Finite loop: 1 to 268435455
measEnable
Enable or disable measurements at the top of each pulse:
• Enable: smu.ON (default)
•
Disable: smu.OFF
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

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