Keithley 2651A User Manual

Model 2651A High Power System SourceMeter® Instrument User's Manual Section 6: Characterization of power discretes
-- Prepare the Drain SMU (2651A) reading buffers
smua.nvbuffer1.clear()
smua.nvbuffer1.collectsourcevalues = 1
smua.nvbuffer1.fillmode = smua.FILL_ONCE
smua.nvbuffer2.clear()
smua.nvbuffer2.collectsourcevalues = 1
smua.nvbuffer2.fillmode = smua.FILL_ONCE
-- Configure the Gate SMU(26xxA)
--------------------------------
node[2].smua.reset()
node[2].smua.source.func = node[2].smua.OUTPUT_DCVOLTS
node[2].smua.sense = node[2].smua.SENSE_REMOTE
node[2].smua.source.levelv = 0
node[2].smua.source.limiti = 100e-3
node[2].smua.measure.delay = 300e-6
-- Give gate 300us to settle
-- Do not need to configure any additional measure settings.
-- Timing is not critical on the gate so autorange will do.
node[2].smua.source.highc = node[2].smua.DISABLE
-- If you find the gate to be unstable even with a gate resistor
-- in place, changing highc to node[2].smua.ENABLE can improve stability.
-- Configure Gate SMU(26xxA) Trigger Model
node[2].smua.trigger.source.linearv(gstart, gstop, gsteps)
node[2].smua.trigger.source.limiti = 100e-3
node[2].smua.trigger.measure.action = node[2].smua.ENABLE
node[2].smua.trigger.measure.iv(node[2].smua.nvbuffer1, node[2].smua.nvbuffer2)
node[2].smua.trigger.endpulse.action = smua.SOURCE_HOLD
node[2].smua.trigger.endsweep.action = smua.SOURCE_IDLE
node[2].smua.trigger.count = gsteps
node[2].smua.trigger.arm.stimulus = 0
node[2].smua.trigger.source.stimulus = node[2].tsplink.trigger[1].EVENT_ID
node[2].smua.trigger.measure.stimulus = 0
node[2].smua.trigger.endpulse.stimulus = node[2].tsplink.trigger[2].EVENT_ID
node[2].smua.trigger.source.action = smua.ENABLE
-- Configure Model 26xxA TSP-Link Triggers
node[2].tsplink.trigger[1].clear()
node[2].tsplink.trigger[1].mode = node[2].tsplink.TRIG_SYNCHRONOUSA
node[2].tsplink.trigger[1].stimulus =
node[2].smua.trigger.MEASURE_COMPLETE_EVENT_ID
node[2].tsplink.trigger[2].clear()
node[2].tsplink.trigger[2].mode = node[2].tsplink.TRIG_FALLING
2651A-900-01 Rev. A / March 2011 6-13

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English