7-12 Return to Section Topics 6482-901-01 Rev. A / August 2012
Section 7: Sweep Operation Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
Staircase sweep programming example
As an example of linear staircase sweep operation, assume the Model 6482 will be used to
generate the reverse-biased V-I characteristics of a device under test (DUT). For the purposes of
this test, assume the following basic sweep parameters:
Source and measure channel: Channel 2
Source mode: Sweep
Start voltage: 1 V
Stop voltage: 10 V
Step voltage: 1 V
Source delay: 100 ms
Table 7-3 lists the command sequence for this programming example. See Section 2,
“Connections,” for details on how to connect the DUT to the channel 2 INPUT and OUTPUT
connectors.
NOTE See Appendix F for a complete program listing.
Table 7-3
Staircase sweep programming example
Command Description
*RST
:FORM:ELEM CURR2
:SENS2:CURR:RANG:AUTO ON
:SOUR2:VOLT:STAR 1
:SOUR2:VOLT:STOP 10
:SOUR2:VOLT:STEP 1
:SOUR2:VOLT:MODE SWE
:SOUR2:SWE:RANG AUTO
:SOUR2:SWE:SPAC LIN
:TRIG:COUN 10
:SOUR2:DEL 0.1
:OUTP2 ON
:READ?
:OUTP2 OFF
Restore GPIB default conditions.
Select channel 2 measurement data.
Enable channel 2 measure autorange.
1 V channel 2 start voltage.
10 V channel 2 stop voltage.
1 V channel 2 step voltage.
Select channel 2 sweep mode.
1
Channel 2 automatic source ranging.
Select channel 2 linear staircase sweep.
Trigger count = Number of sweep points.
2
100 ms source delay.
Turn on channel 2 source output.
Trigger sweep, request data.
Turn off channel 2 source output.
1
Send this command after START, STOP, and STEP to avoid delays caused by the rebuilding of the
sweep when each command is sent.
2
For a single sweep, the trigger count should equal number of points in sweep: Points = (Stop-Start)/Step
+ 1. You can use the SOUR:SWE:POIN? query to read the number of points.
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