Keithley 6482 - Page 6

Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual Table of Contents
6482-901-01 Rev. A / August 2012 3
Timestamp accuracy ............................................................................ 6-4
Buffer considerations............................................................................ 6-4
Remote command data store...................................................................... 6-5
Data store commands .......................................................................... 6-5
Data store programming example........................................................ 6-6
7 Sweep Operation.................................................................................... 7-1
Sweep types ............................................................................................... 7-2
Linear staircase sweep......................................................................... 7-2
Logarithmic staircase sweep ................................................................ 7-2
Custom sweep...................................................................................... 7-4
Configuring and running a sweep ............................................................... 7-5
Front-panel sweep operation................................................................ 7-5
Performing sweeps............................................................................... 7-7
Remote sweep operation ................................................................... 7-11
8 Triggering................................................................................................. 8-1
Front-panel operation of the trigger model.................................................. 8-2
Idle........................................................................................................ 8-2
Event detection..................................................................................... 8-3
Trigger layer................................................................................................ 8-4
Trigger delay......................................................................................... 8-5
Source, delay, and measure actions .................................................... 8-5
Counters............................................................................................... 8-5
Output triggers...................................................................................... 8-5
Bench defaults...................................................................................... 8-6
Operation summary.............................................................................. 8-6
Trigger link .................................................................................................. 8-6
Input trigger requirements .................................................................... 8-7
Output trigger specifications................................................................. 8-7
External triggering example.................................................................. 8-8
Configuring triggering................................................................................ 8-12
CONFIGURE TRIGGER menu .......................................................... 8-12
Remote operation of the trigger model ..................................................... 8-14
Trigger model ..................................................................................... 8-14
Idle and initiate ................................................................................... 8-14
Event detection................................................................................... 8-15
Arm layer............................................................................................ 8-16
Trigger layer ....................................................................................... 8-16
Trigger delay....................................................................................... 8-17
Source, delay, and measure actions .................................................. 8-17
Counters............................................................................................. 8-17
Output triggers.................................................................................... 8-18
GPIB defaults ..................................................................................... 8-18
Operation summary............................................................................ 8-19
Remote trigger commands ................................................................. 8-19
Remote trigger example ..................................................................... 8-20
9 Measurement Concepts ....................................................................... 9-1
Source-delay-measure cycle ...................................................................... 9-2
Overview .............................................................................................. 9-2
Triggering ............................................................................................. 9-2
Delay phase ......................................................................................... 9-3
Measurement time................................................................................ 9-3
Sweep waveforms....................................................................................... 9-3
Staircase sweeps.................................................................................. 9-3
Custom sweep...................................................................................... 9-3
SDM cycle during sweeps .................................................................... 9-3
Typical sweep applications................................................................... 9-4
Sweep data storage ............................................................................. 9-4
Bias source operating boundaries .............................................................. 9-4
Limit lines ............................................................................................. 9-4
Loading effects ..................................................................................... 9-5
Data flow..................................................................................................... 9-6
Basic readings...................................................................................... 9-7