Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-217
Usage
highC = smuX.source.highc
smuX.source.highc = highC
highC
The state of the high-capacitance mode; set to one of the following values:
0 or smuX.DISABLE: Disables high-capacitance mode
1 or smuX.ENABLE: Enables high-capacitance mode
X
Source-measure unit (SMU) channel (for example, smua.source.highc applies
to SMU channel A)
Details
When enabled, the high-capacitance mode has the following effects on the SMU settings:
• smuX.measure.autorangei is set to smuX.AUTORANGE_FOLLOW_LIMIT and cannot be changed
• Current ranges below 1 μA are not accessible
• If smuX.source.limiti is less than 1 μA, it is raised to 1 μA
• If smuX.source.rangei is less than 1 μA, it is raised to 1 μA
• If smuX.source.lowrangei is less than 1 μA, it is raised to 1 μA
• If smuX.measure.lowrangei is less than 1 μA, it is raised to 1 μA
Example
smua.source.highc = smua.ENABLE
Activates high-capacitance mode
for SMU channel A.
Also see
High-capacitance mode (on page 3-63)
smuX.source.levelY
This attribute sets the source level.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes SMU reset
Instrument reset
Recall setup
Saved setup 0
Usage
sourceLevel = smuX.source.levelY
smuX.source.levelY = sourceLevel
sourceLevel
The source value; set to one of the following values:
Voltage: 0 V to ±3000 V
Current: 0 A to ±120 mA
X
Source-measure unit (SMU) channel (for example, smua.source.levelv applies
to SMU channel A)
Y
SMU source function (v = voltage, i = current)

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English