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Contents
NI 6124/6154 User Manual vi ni.com
Connecting Analog Input Signals.................................................................................. 4-6
Types of Signal Sources.................................................................................. 4-7
Differential Connections for Ground-Referenced Signal Sources.................. 4-7
Common-Mode Signal Rejection Considerations ............................4-9
Differential Connections for Non-Referenced or Floating Signal Sources .... 4-9
DC-Coupled...................................................................................... 4-10
AC-Coupled...................................................................................... 4-11
Field Wiring Considerations........................................................................... 4-11
Minimizing Drift in Differential Mode...........................................................4-12
Analog Input Timing Signals ........................................................................................ 4-13
AI Sample Clock Signal..................................................................................4-14
Using an Internal Source .................................................................. 4-14
Using an External Source ................................................................. 4-15
Routing AI Sample Clock Signal to an Output Terminal................. 4-15
Other Timing Requirements ............................................................. 4-15
AI Sample Clock Timebase Signal ................................................................. 4-16
AI Convert Clock Signal................................................................................. 4-16
Using an Internal Source .................................................................. 4-17
Using an External Source ................................................................. 4-17
Routing AI Convert Clock Signal to an Output Terminal................ 4-17
AI Convert Clock Timebase Signal ................................................................4-17
AI Hold Complete Event Signal ..................................................................... 4-18
AI Start Trigger Signal.................................................................................... 4-18
Using a Digital Source...................................................................... 4-18
Using an Analog Source................................................................... 4-19
Routing AI Start Trigger to an Output Terminal.............................. 4-19
AI Reference Trigger Signal........................................................................... 4-19
Using a Digital Source...................................................................... 4-20
Using an Analog Source................................................................... 4-20
Routing AI Reference Trigger Signal to an Output Terminal.......... 4-20
Getting Started with AI Applications in Software ........................................................ 4-21
Chapter 5
Analog Output
Minimizing Glitches on the Output Signal.................................................................... 5-2
AO Data Generation Methods....................................................................................... 5-2
Analog Output Triggering.............................................................................................5-4
Connecting Analog Output Signals............................................................................... 5-4
Waveform Generation Timing Signals.......................................................................... 5-6
AO Sample Clock Signal................................................................................ 5-6
Using an Internal Source .................................................................. 5-6
Using an External Source ................................................................. 5-7
Routing AO Sample Clock Signal to an Output Terminal ............... 5-7