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Model 2450 Interactive SourceMeter® Instrument Reference Manual
Section 8: TSP command reference
2450-901-01 Rev. B/September 2013
8-135
smu.source.highc
This attribute enables or disables high capacitance feature.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW) Yes
Restore configuration
Instrument reset
Power cycle
Source configuration list
Function change
Configuration script
Source configuration list
smu.OFF
Usage
state
= smu.source.highc
smu.source.highc =
state
state
Turn high capacitance off:
smu.OFF
or
0
Turn high capacitance on:
smu.ON
or
1
Details
When the instrument is measuring low current and is driving a capacitive load, you may see overshoot, ringing,
and instability. You can enable the high capacitance feature to minimize these problems.
High-capacitance settings apply when operating using the 10 nA through the 100 mA current ranges. When
operating using the 1 A range, the high-capacitance setting will not affect the instrument rise time or current
measure settling time.
Example
smu.source.highc = smu.ON
Turn the high capacitance feature on.
Also see
(on page 4-21)
smu.source.level
This attribute immediately selects a fixed amplitude for the selected source function.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW) Yes
Restore configuration
Instrument reset
Power cycle
Source configuration list
Function change
Configuration script
Source configuration list
0
Usage
sourceLevel
= smu.source.level
smu.source.level =
sourceLevel
sourceLevel
Current: -1.05 A to 1.05 A
Voltage: -210 V to 210 V