Tektronix Keithley 2601B-PULSE - List sweeps

Section 4: Sourcing and measuring Model 2601B-PULSE System SourceMeter Instrument Reference Manual
4-68 2601B-PULSE-901-01A April 2020
The log steps for this sweep are listed in the table below.
Logarithmic sweep points
Source point (N)
Source level (V)
Step number (i)
1
1
0
2
1.7783
1
3
3.1623
2
4
5.6234
3
5
10
4
When this sweep starts, the output will go to the start level (1 V) and sweep through the symmetrical
log points.
To configure a logarithmic staircase sweep, use the smua.trigger.source.logY()function. This
function configures the source values the source-measure unit (SMU) will output when performing a
logarithmic sweep. After configuring the sweep, you must also enable the source action by setting the
following attribute:
smua.trigger.source.action
Example:
-- Configure a sweep from 1 to 10 V in 10 steps with an asymptote of 0 V.
smua.trigger.source.logv(1, 10, 11, 0)
-- Enable the source action.
smua.trigger.source.action = smua.ENABLE
For more information, see smua.trigger.source.logY() (on page 11-256).
List sweeps
Use a list sweep to configure a sweep with arbitrary steps. When enabled, a measurement is made at
each point after source and measurement settling time.
To configure a list sweep, use the smua.trigger.source.listY()function. This function
configures the source values that the source-measure unit (SMU) will output when performing a list
sweep. After configuring the sweep, you must also enable the source action by setting the
smua.trigger.source.action attribute.
Example:
-- Sweep through 3 V, 1 V, 4 V, 5 V, and 2 V.
smua.trigger.source.listv({3, 1, 4, 5, 2})
-- Enable the source action.
smua.trigger.source.action = smua.ENABLE