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Contents
DAQCard-500 User Manual
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© National Instruments Corporation
Chapter 4
Theory of Operation
.......................................................................................................... 4-1
Functional Overview......................................................................................................4-1
PCMCIA I/O Channel Interface Circuitry.....................................................................4-2
Analog Input and Data Acquisition Circuitry................................................................4-3
Analog Input Circuitry.......................................................................................4-3
Data Acquisition Timing Circuitry ....................................................................4-4
Single-Channel Data Acquisition...........................................................4-4
Multichannel (Scanned) Data Acquisition.............................................4-5
Data Acquisition Rates...........................................................................4-5
Digital I/O Circuitry.......................................................................................................4-5
Timing I/O Circuitry ......................................................................................................4-6
Appendix A
Specifications
........................................................................................................................ A-1
Appendix B
Differences between the DAQCard-700 and the DAQCard-500
....................... B-1
Appendix C
Custom Cable Design
......................................................................................................... C-1
Appendix D
PC Card Questions and Answers
.................................................................................. D-1
Appendix E
Power Management Modes
............................................................................................. E-1
Appendix F
PSH27-50F Signal Connections
..................................................................................... F-1
Appendix G
Customer Communication
............................................................................................... G-1
Glossary
......................................................................................................................Glossary-1
Index
................................................................................................................................. Index-1