Tektronix Keithley SourceMeter 2450 User Manual

Model 2450
SourceMeter® Instrument User's Manual Section 7: Measuring I-
V characteristics of FETs
2450-900-01 Rev. E / August 2019 7-7
SMU 1,
SMU 2, or
pseudocode
Commands Description
Pseudocode
for i = 2 to 5 do:
 Set up a
for
loop from 2 to 5.
SMU 1
:SOUR:VOLT i
:SOUR:CONF:LIST:STORE "stepVals"
 Set the voltage level to the iteration
number.
 Store the source configuration to
stepVals
.
Pseudocode
end for

End the
for
loop.
SMU 1
:TRIG:BLOC:CONF:RECALL 1, "stepVals"
:TRIG:BLOC:SOUR:STAT 2, ON
:TRIG:BLOC:MDIG 3
:TRIG:BLOC:NOT 4, 1
:TRIG:BLOC:WAIT 5, DIG2
:TRIG:BLOC:CONF:NEXT 6, "stepVals"
:TRIG:BLOC:BRAN:COUN 7, 4, 3
:TRIG:BLOC:SOUR:STAT 8, OFF
 Create trigger model block 1 to load
stepVals at the first index.
 Create block 2 to turn the output on.
 Create block 3 to make a
measurement.
 Create block 4 to generate the
notify1 event.
 Create block 5 to wait on digital line
2.
 Create block 6 to load the next
index of stepVals.
 Create block 7 to branch to block 3,
3 times.
 Create block 8 to turn the output off.
SMU 2
*RST
:SENS:FUNC "CURR"
:SENS:CURR:RANG:AUTO ON
:ROUT:TERM REAR
:SOUR:FUNC VOLT
:SOUR:VOLT:RANG 20
:SOUR:VOLT:ILIM 1
:SOUR:CONF:LIST:CRE "sweepVals"
:DIG:LINE2:MODE TRIG, OUT
:DIG:LINE1:MODE TRIG, IN
:TRIG:DIG2:OUT:STIM NOT2
:TRIG:DIG1:IN:CLE
:TRIG:DIG1:IN:EDGE RIS
 Reset the instrument.
 Set to measure current.
 Set to measure with autorange
enabled.
 Set to rear terminals.
 Set to source voltage.
 Set to 20 V source range.
 Set the source limit to 1 A.
 Create the source configuration list
sweepVals.
 Set digital line 2 to trigger out.
 Set digital line 1 to trigger in.
 Set the stimulus for digital line 2 to
the notify2 event.
 Clear digital line 1.
 Detect for a rising edge on line 1.

Tektronix Keithley SourceMeter 2450 Specifications

General

Brand	Tektronix
Model	Keithley SourceMeter 2450
Category	Laboratory Equipment
Language	English