Keithley 2651A Reference Manual

Section 7: Command reference Model 2651A High Power System SourceMeter® Instrument Reference Manual
7-224 2651A-901-01 Rev. A / March 2011
Also see
reset() (on page 7-151)
setup.recall()
(on page 7-170)
smuX.measure.rangeY
(on page 7-202)
smuX.reset()
(on page 7-209)
smuX.source.autorangeY (on page 7-211)
Range
(on page 2-65)
smuX.source.settling
This attribute contains the source settling mode.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes SMU reset
Instrument reset
Not saved smuX.SETTLE_SMOOTH
Usage
settleOption = smuX.source.settling
smuX.source.settling = settleOption
settleOption
Set to the source settling mode. Set to one of the following values:
0 or smuX.SETTLE_SMOOTH: Turns off additional settling operations (default).
1 or smuX.SETTLE_FAST_RANGE: Instructs the SMU to use a faster procedure
when changing ranges.
2 or smuX.SETTLE_FAST_POLARITY: Instructs the SMU to change polarity without
going to zero.
3 or smuX.SETTLE_DIRECT_IRANGE: Instructs the SMU to change the current
range directly.
4 or smuX.SETTLE_SMOOTH_100NA: Enables the use of range rampers for the 100
nA range.
128 or smuX.SETTLE_FAST_ALL: Enables all smuX.SETTLE_FAST_* operations.
X
SMU channel (for example, smua.source.settling applies to SMU Channel A).
Details
Using smuX.SETTLE_FAST_RANGE may cause the SMU to exceed the range change overshoot specification.
smuX.SETTLE_FAST_POLARITY does not go to zero when changing polarity and may create inconsistencies at
the zero crossing.
smuX.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 smuX.SETTLE_FAST_* commands.
Example
smua.source.settling = smua.SETTLE_FAST_POLARITY
Selects fast polarity changing for
SMU Channel A.
Also see
Range (on page 2-65)

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English