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
Summary of Contents for PD2-MF
Page 5: ...Table of Contents iii Index 137 ...
Page 11: ...1 1 Introduction ...
Page 18: ......
Page 19: ...9 2 Installation and Configuration ...
Page 34: ......
Page 35: ...25 3 Architecture ...
Page 63: ...53 4 PowerDAQ Software Development Kit PD SDK ...
Page 106: ......
Page 107: ...97 5 Calibration ...
Page 109: ...99 A Appendix A Specifications ...
Page 110: ...Appendix A Specifications 100 ...
Page 112: ......
Page 113: ...103 B Appendix B Accessories ...
Page 118: ......
Page 119: ...109 C Appendix C Application Notes ...
Page 125: ...115 D Appendix D Warranty ...
Page 128: ......
Page 129: ...119 E Appendix E Glossary ...
Page 152: ......