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XC2 Hardware Manual Chapter 3: -EB1 I/O Option Board
3.3.1. Analog Input (Differential) [-EB1]
To interface to a single-ended, non-differential voltage source, connect the signal common of the source to
the negative input and connect the analog source signal to the positive input. A floating signal source must
be referenced to the analog common. Refer to
Figure 3-6 .
Table 3-9: Differential Analog Input Specifications [-EB1]
Specification Value
(AI+) - (AI-)
+10 V to -10 V
(1)
Resolution (bits) 16 bits
Input Impedance 1 MΩ
1. Signals outside of this range may damage the input
Table 3-10: Analog Input Pins on the Analog I/O Connector [-EB1]
Pin# Description In/Out/Bi
1 +5 V Output
2 Analog Input 0+ Input
3 Analog Input 0- Input
4 Ground N/A
Figure 3-6: Analog Input Schematic [-EB1]
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