National Instruments NI PXI-562X - Manual (Page 6)

© National Instruments Corporation vii NI PXI-562x User Manual
Contents
About This Manual
Conventions ...................................................................................................................ix
Related Documentation..................................................................................................x
Chapter 1
Taking Measurements with the NI PXI-562x
Installing the Software and Hardware ...........................................................................1-1
Configuring and Testing the Digitizer ...........................................................................1-2
Acquiring Data Programmatically .................................................................................1-3
Safety Information .........................................................................................................1-4
Chapter 2
Hardware Overview
How the NI 562x Works ................................................................................................2-1
Connecting Signals ..........................................................................................2-2
Conditioning the Signal—Impedance, Dither, Gain, and AC Coupling .........2-3
Input Impedance ...............................................................................2-3
Dither ................................................................................................2-3
Digitizing the Signal—The ADC ....................................................................2-3
Incorporating the DDC ....................................................................................2-4
Storing Data in Memory..................................................................................2-4
Block Diagram ..............................................................................................................2-5
Other Features................................................................................................................2-6
Multiple-Record Acquisitions .........................................................................2-6
Triggering ........................................................................................................2-7
Calibration .....................................................................................................................2-7
Synchronizing Multiple PXI Devices ............................................................................2-8
Appendix A
Technical Support and Professional Services
Glossary
Index