Keithley 2600a series User Manual

19-250 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands Series 2600A System SourceMeter® Instruments Reference Manual
Advanced features
Variable off time between pulses in a pulse train
The KIPulse “Configure” functions will accept the off_time parameter as a table as well as just
a number. The table allows defining different off times to be used after each pulse.
The following should be noted:
1. If off_time is passed as a number or only a single value is used in the table, it will be
used for all points in a multiple point pulse.
2. The number of times specified in the table must match the number of points called for in the
sweep.
3. The times used in tables must match for dual channel pulsing.
4. Each specified off_time must adhere to the duty cycle limits for the specified pulsing
region.
Example:
Table 19-11
KISweep TSP test script: PulseVMeasureI
TSP project name: KIPulse
TSP test script name: KIPulse
Function:
PulseVMeasureI
PulseVMeasureI(smu, bias, level, ton, toff, points)
Description Performs a specified number of pulse V, measure I cycles:
• Sets the smu to output bias volts and dwell for ton seconds.
• Sets the smu to output level volts and dwell for ton seconds.
• Performs current measurement with source at level amps.
• Sets the smu to output bias volts for toff seconds.
• Repeats the above sequence for points pulse-measure cycles.
Parameters
smu, bias, level, ton, toff, points
smu: SourceMeter instrument channel (A or B). Defaults to SMU
A if all parameters are omitted when function is called.
bias: Bias level in volts.
level: Pulse level in volts.
ton: Pulse on-time in seconds.
toff: Pulse off-time in seconds.
points: Number of pulse-measure cycles.
Data
Pulsed current measurements, voltage levels and timestamps are stored in
smuX.nvbuffer1.
Example
PulseVMeasureI(smub, -1, 1, 1E-3, 2E-3, 20)
SMU B will output -1V and dwell for 1ms, output 1V and dwell for 2ms, and then
perform a current measurement. After the measurement, the output will return to
-1V and dwell for 2ms. This pulse-measure process will repeat 19 more times.
level
bias
ton
bias
ton toff
Current measurement

Keithley 2600a series Specifications

General

Brand	Keithley
Model	2600a series
Category	Measuring Instruments
Language	English