Table 1. Signal Descriptions
Signal
Description
AI+
Positive analog input signal connection
AI-
Negative analog input signal connection
COM
Common reference connection to isolated ground
sbRIO-9220 Block Diagram
Input signals on each channel are buffered, conditioned, and then sampled by an ADC.
Each AI channel provides an independent signal path and ADC, enabling you to sample
all channels simultaneously.
COM
AI0+
AI0–
sbRIO-9220
16-Bit Isolated
SAR ADC
Overvoltage Protection
Overvoltage Protection
+
–
AI15+
AI15–
16-Bit Isolated
SAR ADC
Overvoltage Protection
Overvoltage Protection
+
–
sbRIO-9220 Getting Started Guide
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© National Instruments Corporation
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