Keithley SourceMeter 2600 Series Reference Manual page 568

E-4 Speed Specification Test Conditions
Command Processing
The procedure for a Command Processing test is listed below:
1.
2.
3.
4.
Sweep Operation Rates
All tests in this section use a setup script with the following procedure if internal
handshaking is involved. All tests use smua.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
2600S-901-01 Rev. A / May 2006
NOTE All range change rates are specified as typical. This
means that the specification applies to single range
steps between adjacent ranges (e.g. 10mA to 100mA).
The current (amps) range change specifications
exclude ranges < 100mA due large settling times
associated with these low current ranges.
Using an oscilloscope, connect a probe to GPIB ATN line. Connect another
probe to the output of smua. Set up the scope to display both inputs on the
appropriate scales.
Again, a script is used to put the Series 2600 into a known test state. It is
sent to the instrument but not executed. The script configures the unit to
take a large number of samples.
The script is executed causing the output of the smu to change levels.
Time is recorded on the scope, measuring the period between the time the
GPIB ATN line stops moving, and when the output of the smu begins to
change.
Set the source range to 1V, turning autorange off.
Measure range is set to 1V, turning autorange off.
Measurement filter is off.
Set the source function to volts.
The NPLC is set.
Turn output ON.
Autozero is set to smua.AUTOZERO_ONCE.
A voltage measurement is taken to get a background reference reading.
Autozero is turned off.
A for-loop takes the desired number of samples.
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Series 2600 System SourceMeters Reference Manual
Appendix E topics