Custom Sweep; Table 9-1 Logarithmic Sweep Points - Keithley 2500 User Manual

9-4 Sweep Operation
Thus, the five log steps for this sweep are 0, 0.25, 0.50, 0.75, and 1.00. The actual voltage
bias levels at these points are listed in
log step).
Table 9-1
Logarithmic sweep points
Measure point
Point 1
Point 2
Point 3
Point 4
Point 5
When this sweep is triggered to start, the output will go from the bias level to the start
source level (1V) and sweep through the symmetrical log points. With trigger delay set to
zero, the time duration at each step is determined by the source delay and the time it takes
to perform the measurement (NPLC setting).

Custom sweep

This sweep type lets you configure a customized sweep. Programmable parameters
include the number of measurement points in the sweep and the voltage source level at
each point.
When this sweep is started, the output goes from the bias level to the first voltage bias and
measure point in the sweep. The sweep will continue through the points in the order they
were programmed and stop after the last voltage bias and measure point. With trigger
delay set to zero, the time duration at each step is determined by the source delay and the
time it takes to perform the measurement (NPLC setting). This delay is the same for all
sweep points.
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Table 9-1
Log step Bias level (volts)
0 1
0.25 1.7783
0.50 3.1623
0.75 5.6234
1.0 10
Models 2500 and 2502 User's Manual
(the voltage bias level is the anti-log of the