Logarithmic Staircase Sweeps; Figure 4-3 Logarithmic Staircase Sweep (Example 5-Point Sweep From 1Ma To 10Ma) - Keithley 6220 Reference Manual

Model 6220/6221 Reference Manual

Logarithmic staircase sweeps

This sweep is similar to the linear staircase sweep. The steps, however, are done
on a logarithmic scale as shown in the example sweep in
ple is a 5-point log sweep from 1mA to 10mA. The sweep delay parameter deter-
mines the time period for each step. As with the linear staircase sweep, the sweep
delay period is the same for all steps.
Figure 4-3
Logarithmic staircase sweep (example 5-point sweep from 1mA to 10mA)
Log
Scale
10
5.6234
Current
3.1623
(mA)
1.7783
1
Bias
0
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Delay
Delay
Start
Return to Section 4 topics
Figure
Delay
Delay
Log Points = 5
Sweep delay is the
same for each step.
Sweeps 4-5
4-3. This exam-
Delay
Stop
(10)