Keithley 6220 Reference Manual page 146

5-26 Delta, Pulse Delta, and Differential Conductance
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•
•
Figure 5-8
Delta triggering sequence
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Model 2182/2182A – After its Trigger Delay expires, the Model 2182/2182A
performs another measurement conversion (A/D #2). An output trigger
pulse is then sent back to the Model 622x.
Model 622x – The Model 622x outputs the programmed high (I-High) cur-
rent level. After the Delta Delay expires, an output trigger is sent back to the
Model 2182/2182A.
Model 2182/2182A – After its Trigger Delay expires, the Model 2182/2182A
performs another measurement conversion (A/D #3). Delta is then calcu-
lated by the Model 622x. The Model 2182/2182A outputs a trigger pulse to
the Model 622x to start the next Delta cycle (if Delta count is >1). Other-
wise, Delta will stop. Figure 5-6
the Model 2182/2182A to the Model 622x.
2182/
2182A
A/D #1
Note
Return to
Model 6220/6221 Reference Manual
shows the data (reading) flow process from
2182/
2182A
A/D #2
Section 5 topics
2182/
2182A
A/D #3
Delta
Reading