Tektronix Keithley 4225-PMU User Manual

Section
2: Connections Model 4200A-SCS Pulse Card (PGU and PMU)
User's Manual
2-26 4200A-PMU-900-01 Rev. B March 2023
Figure 23: LLEC algorithm for two-level pulsing (PMU)
There are two parameters that control how the LLEC algorithm functions: Maximum number of
iterations and tolerance window. For ITMs, the maximum number of iterations is fixed at 20 and the
tolerance window is 0.3 percent. For UTMs, use the setmode function. The LLEC algorithm iterates,
trying to reach the target voltage until one of the following occurs:
• The target voltage is reached (within tolerance specified).
• The maximum number of iterations is reached. The maximum number of iterations must be equal
for each channel in the test.

Tektronix Keithley 4225-PMU Specifications

General

Brand	Tektronix
Model	Keithley 4225-PMU
Category	Computer Hardware
Language	English