Chapter 3: Architecture
35
Input Modes
Single Ended
The PowerDAQ boards operate with either a single-ended or a
differential input configuration. Single-ended inputs allow up to 64
channels and share a common low side, which is the analog ground.
Single ended inputs are shown diagrammatically in figure 12.
See Table
5 for complete wiring instructions.
Note
Unused channels should be shorted to ground using
a 0 to 1KOhm resistor.
Figure 12: Single-Ended Inputs
Differential Inputs
Differential inputs allow up to 32 channels. (Differential inputs use two
analog input channels. One channel connects to the positive input of
the programmable gain amplifier and the other to the negative of the
instrumentation amplifier).
+
-
V1
Ain
Agnd
+
-
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Страница 63: ...53 4 PowerDAQ Software Development Kit PD SDK ...
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Страница 107: ...97 5 Calibration ...
Страница 109: ...99 A Appendix A Specifications ...
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