Keithley 2470 User Manual

Section
6: Measure I-V characteristics of FETs Model 2470 High Voltage SourceMeter Instrument
User's Manual
6-10 2470-900-01 Rev. A / May 2019
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.
Pseudocode
for i = 0, 5, 0.1 do:
 Set up a for loop from 0 to 5 in 0.1
steps (inclusive).
SMU 2 :SOUR:VOLT i
:SOUR:CONF:LIST:STORE "sweepVals"
 Set the voltage level to the iteration
number.
 Store the source configuration to
sweepVals
.
Pseudocode
end for
 End the
for
loop.
SMU 2
:TRIG:BLOC:CONF:RECALL 1, "sweepVals"
:TRIG:BLOC:SOUR:STAT 2, ON
:TRIG:BLOC:WAIT 3, DIG1
:TRIG:BLOC:DEL:CONS 4, 0.01
:TRIG:BLOC:MEAS 5
:TRIG:BLOC:CONF:NEXT 6, "sweepVals"
:TRIG:BLOC:BRAN:COUN 7, 51, 4
:TRIG:BLOC:NOT 8, 2
:TRIG:BLOC:BRAN:COUN 9, 4, 3
:TRIG:BLOC:SOUR:STAT 10, OFF
 Create a block to load sweepVals
at the first index.
 Create a block to turn the output on.
 Create a block to wait on digital line
3.
 Create a block to delay for 0.01
seconds.
 Create a block to take a
measurement.
 Create a block to load the next
index of sweepVals.
 Create a block to branch to block 4,
50 times.
 Create a block to generate the
notify2 event.
 Create a block to branch to block 3
three times.
 Create a block to turn the output off.
SMU 1
:INIT
*WAI
 Initiate the trigger model.
 Wait for the model to complete.

Keithley 2470 Specifications

General

Brand	Keithley
Model	2470
Category	Power Supply
Language	English