Chapter 3: Architecture
30
Figure 8: PowerDAQ Multifunction Board front-end
MFS boards have sample and hold amplifiers (SHA) located at the
signal inputs. PD2-MFS-DGx options includes a INA and PGA in the one
device located on the back side of the board (Fig. 9). SE or DF mode is
selected by grounding negative input of the INA to the boards analog
ground (AGND). Channel numbers along with their gains are stored in
the channel list. This allows you to select different gains on a per-
channel basis.
~
INA
MUX A
MUX B
~
Analog
input 0
Analog
input N
…
…
…
PGA
SE/DF
switch
control
signal
channel and
gain control
… to range
control,
calibration
circuitry and
ADC
Содержание PD2-MF
Страница 5: ...Table of Contents iii Index 137 ...
Страница 11: ...1 1 Introduction ...
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Страница 19: ...9 2 Installation and Configuration ...
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Страница 35: ...25 3 Architecture ...
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 ...
Страница 110: ...Appendix A Specifications 100 ...
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Страница 113: ...103 B Appendix B Accessories ...
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Страница 119: ...109 C Appendix C Application Notes ...
Страница 125: ...115 D Appendix D Warranty ...
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Страница 129: ...119 E Appendix E Glossary ...
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