Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Table of Contents
2657A-901-01 Rev. B/December 2012 iii
Sweep programming examples ............................................................................................... 3-30
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Triggering ........................................................................................................................... 3-31
Remote triggering overview..................................................................................................... 3-31
Using the remote trigger model ............................................................................................... 3-33
SMU event detectors ............................................................................................................... 3-38
Using trigger events to start actions on trigger objects ............................................................ 3-39
Digital I/O port and TSP-Link synchronization lines ................................................................ 3-40
Timers ..................................................................................................................................... 3-42
Event blenders ........................................................................................................................ 3-48
LAN triggering overview .......................................................................................................... 3-49
Command interface triggering ................................................................................................. 3-51
Manual triggering .................................................................................................................... 3-52
Interactive triggering ................................................................................................................ 3-52
Hardware trigger modes .......................................................................................................... 3-55
Understanding synchronous triggering modes ........................................................................ 3-59
High-capacitance mode ..................................................................................................... 3-63
Overview ................................................................................................................................. 3-63
Understanding high-capacitance mode ................................................................................... 3-64
Enabling high-capacitance mode ............................................................................................ 3-65
Display operations .............................................................................................................. 3-68
Display functions and attributes .............................................................................................. 3-68
Display features ...................................................................................................................... 3-69
Display messages ................................................................................................................... 3-69
Input prompting ....................................................................................................................... 3-73
Indicators................................................................................................................................. 3-75
Local lockout ........................................................................................................................... 3-76
Load test menu ....................................................................................................................... 3-76
Running a test from the front panel ......................................................................................... 3-78
Key-press codes ..................................................................................................................... 3-78
Digital I/O ........................................................................................................................... 3-80
Digital I/O port ......................................................................................................................... 3-80
Interlock .................................................................................................................................. 3-84
TSP-Link synchronization lines ............................................................................................... 3-86
Theory of operation .................................................................................................... 4-1
Analog-to-digital converter ................................................................................................... 4-1
Source-measure concepts ................................................................................................... 4-1
Overview ................................................................................................................................... 4-1
Compliance limit principles ........................................................................................................ 4-2
Overheating protection .............................................................................................................. 4-2
Operating boundaries ................................................................................................................ 4-4
Basic circuit configurations ...................................................................................................... 4-18
Guard ...................................................................................................................................... 4-23
Output connection considerations ........................................................................................... 4-25
Effects of load on current source settling time ................................................................... 4-25
Creating pulses with the Model 2657A .............................................................................. 4-25
Pulse rise and fall times .......................................................................................................... 4-26
Pulse width .............................................................................................................................. 4-27
Introduction to TSP operation ................................................................................... 5-1
Introduction to TSP operation .............................................................................................. 5-1
Controlling the instrument by sending individual command messages ..................................... 5-1
Queries ..................................................................................................................................... 5-2

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English