Keithley SourceMeter 2600 Series Reference Manual page 167

Series 2600 System SourceMeters Reference Manual
Figure 5-3
Logarithmic staircase sweep (1V to 10V, five steps)
The programmable parameters for a log sweep include the source function,
channel, start and stop levels, delay (settling time), and the number of
measurement points for the sweep. The specified start, stop, and points
parameters determine the logarithmic step size for the sweep. The delay
parameter determines the time period before each measurement at each step.
Step size for the sweep in Figure 5-3 is calculated as follows:
log10(stop) log10(start)
Log Step Size
= ----------------------------------------------------------------- -
log10(10) log10(1)
= ---------------------------------------------------- -
( )
1 0
–
= ---------------- -
4
0.25
=
Return to Section 5 topics
Sweep Operation
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Points 1 –
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5 1 –
2600S-901-01 Rev. A / May 2006
5-5