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Chapter 2 Hardware Overview of the NI 7831R
© National Instruments Corporation 2-3 NI 7831R User Manual
Figure 2-3. Parts Locator Diagram for the NI PCI-7831R
Analog Input
The NI 7831R has eight independent, 16-bit AI channels that you
can sample simultaneously or at different rates. The input mode is
software-configurable, and the input range is fixed at ±10 V. The
converters return data in two’s complement format. Table 2-1 shows the
ideal output code returned for a given AI voltage.
SW1