2606B System SourceMeter® Instrument Reference Manual
Section 7: TSP command reference
2606B-901-01 Rev. B / May 2018
7-219
smuX.source.lowrangeY
This attribute sets the lowest source range that is used during autoranging.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW) Yes
SMU reset
Instrument reset
Recall setup
Saved setup
Voltage: 100e-3 (100 mV)
Current: 100e-9 (100 nA)
Usage
sourceRangeLow
= smu
X
.source.lowrange
Y
smu
X
.source.lowrange
Y
=
sourceRangeLow
sourceRangeLow
Set to the lowest voltage (in volts) or current (in amperes) range to be used
X
Source-measure unit (SMU) channel (for example,
smua.source.lowrangev
applies to SMU channel A)
Y
SMU source function (v = voltage, i = current)
Details
This attribute is used with source autoranging to put a lower bound on the range that is used. Lower
ranges generally require greater settling times. If you set a low-range value, you might be able to
source small values with less settling time.
If the instrument is set to autorange and it is on a range lower than the one specified by
sourceRangeLow
, the source range will be changed to the range specified by
sourceRangeLow
.
Example
smua.source.lowrangev = 1
Sets volts low range for SMU A to 1 V. This prevents the source from using the 100 mV range when sourcing
voltage.
Also see