
In this section:
Introduction .............................................................................. 2-1
Measuring ................................................................................ 2-1
Sourcing and limits ................................................................... 2-2
Ranging .................................................................................... 2-3
Matrix operations ...................................................................... 2-4
Sweeping ................................................................................. 2-5
Triggers .................................................................................... 2-6
GPIB ........................................................................................ 2-6
Instruments and instrument drivers .......................................... 2-7
Instrument and terminal IDs ..................................................... 2-9
Optimizing test sequences ....................................................... 2-9
Editing the icconfig_<QMO>.ini file ........................................ 2-11
Error handling ......................................................................... 2-12
Introduction
The Keithley line of parametric testers uses function libraries to control the instruments in the system.
These libraries are called test control libraries. A test control library is the lowest level software
interface to a parametric tester. This manual documents the Linear Parametric Test Library (LPTLib).
Measuring
The most important part of a parametric tester is its ability to make measurements. There are three
types of measurements you can make with the Linear Parametric Test Library (LPTLib):
•
Ordinary measurements
•
Integrated measurements
•
Averaged measurements
The type of measurement you make depends on the type of noise you are trying to eliminate from
your measurement.
Ordinary measurements
Ordinary measurements are made with the
meas
X
command. This is the fastest single-point
measurement you can make. Use this type of measurement when speed is most important or when
noise is not significant.
Section 2
Linear Parametric Test Library