Contents
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Mux ................................................................................................................. 2-1
Instrumentation Amplifier (NI-PGIA) ............................................................ 2-2
A/D Converter................................................................................................. 2-2
AI FIFO........................................................................................................... 2-2
Analog Trigger ................................................................................................ 2-2
AI Timing Signals ........................................................................................... 2-2
Input Polarity and Range ............................................................................................... 2-2
Analog Input Terminal Configuration........................................................................... 2-5
Dither ............................................................................................................................. 2-8
Multichannel Scanning Considerations ......................................................................... 2-9
Use Low Impedance Sources .......................................................................... 2-10
Use Short High-Quality Cabling..................................................................... 2-11
Carefully Choose the Channel Scanning Order .............................................. 2-11
Avoid Switching from a Large to a Small Input Range ................... 2-11
Insert Grounded Channel between Signal Channels ........................ 2-11
Minimize Voltage Step between Adjacent Channels ....................... 2-12
Avoid Scanning Faster than Necessary........................................................... 2-12
Example 1 ......................................................................................... 2-12
Example 2 ......................................................................................... 2-13