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Model 2657A High Power System SourceMeter® Instrument Reference Manual
Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012
7-225
Usage
settleOption
= smu
X
.source.settling
smu
X
.source.settling =
settleOption
settleOption
Set to the source settling mode. Set to one of the following values:
0
or
smu
X
.SETTLE_SMOOTH
: Turns off additional settling operations (default)
1
or
smu
X
.SETTLE_FAST_RANGE
: Instructs the source-measure unit (SMU) to use
a faster procedure when changing ranges
2
or
smu
X
.SETTLE_FAST_POLARITY
: Instructs the SMU to change polarity without
going to zero
3
or
smu
X
.SETTLE_DIRECT_IRANGE
: Instructs the SMU to change the current
range directly
128
or
smu
X
.SETTLE_FAST_ALL
: Enables all
smu
X
.SETTLE_FAST_*
operations
X
SMU channel (for example,
smua.source.settling
applies to SMU channel A)
Details
Using
smu
X
.SETTLE_FAST_RANGE
may cause the SMU to exceed the range change overshoot specification.
smu
X
.SETTLE_FAST_POLARITY
does not go to zero when changing polarity and may create inconsistencies at
the zero crossing.
smu
X
.SETTLE_DIRECT_IRANGE
switches the SMU directly to the target range instead of the default “range-by-
range” method. This option is mutually exclusive of any other
smu
X
.SETTLE_FAST_*
commands.
Example
smua.source.settling = smua.SETTLE_FAST_POLARITY
Selects fast polarity changing for
SMU channel A.
Also see
smuX.source.sink
This attribute turns sink mode on or off.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
SMU reset
Instrument reset
Recall setup
Saved setup
0 (smuX.DISABLE)
Usage
sinkMode
= smu
X
.source.sink
smu
X
.source.sink =
sinkMode
sinkMode
Sets the sink mode on or off; set to one of the following values:
0
or
smu
X
.DISABLE
: Turns off sink mode
1
or
smu
X
.ENABLE
: Turns on sink mode
X
Source-measure unit (SMU) channel (for example,
smua.source.sink
applies to
SMU channel A)
Details
This attribute enables or disables sink mode. When sink mode is enabled, it reduces the source limit inaccuracy
that occurs when operating in quadrants II and IV (quadrants I and III will show this source limit inaccuracy).
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