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Section 9: Sweep Operation
Table 9-1
Logarithmic sweep points
Measure
point (N)
Point 1
Point 2
Point 3
Point 4
Point 5
When this sweep starts, the output will go to the start level (1V) and sweep through the
symmetrical log points.
To configure a logarithmic staircase sweep, use the following function:
smuX.trigger.source.logY
This function configures the source values the SMU will output when performing a logarithmic
sweep. After configuring the sweep you must also enable the source action by setting the following
attribute:
smuX.trigger.source.action
Example:
-- Sweep from 1 to 10V in 10 steps with an asymptote of 0V.
smua.trigger.source.logv(1, 10, 11, 0)
-- Enable the source action.
smua.trigger.source.action = smua.ENABLE
For more information, see
List sweeps
Use a list sweep to configure a sweep with arbitrary steps. A measurement is made at each point
after source and measurement settling time.
To configure a list sweep, use the following function:
smuX.trigger.source.listY
This function configures the source values the SMU will output when performing a list sweep. After
configuring the sweep you must also enable the source action by setting the following attribute:
smuX.trigger.source.action
Example:
-- Sweep through 3V, 1V, 4V, 5V, and 2V.
smua.trigger.source.listv({3, 1, 4, 5, 2})
-- Enable the source action.
smua.trigger.source.action = smua.ENABLE
When the sweep is started, the output level goes to the first point in the sweep. The sweep will
continue through the steps in the order they were programmed.
9-8
Step
Source level (V)
number (i)
1
0
1.7783
1
3.1623
2
5.6234
3
10
4
smuX.trigger.source.logY.
Return to
Section Topics
Series 2600A System SourceMeter® Instruments Reference Manual
2600AS-901-01 Rev. B / September 2008
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