Analog Output - National Instruments DAQ X Series User Manual

Analog Output

Many X Series devices have analog output functionality. X Series devices
that support analog output have either two or four AO channels that are
controlled by a single clock and are capable of waveform generation. Refer
to Appendix A,
capabilities of your device.
Figure 5-1 shows the analog output circuitry of X Series devices.
The main blocks featured in the X Series analog output circuitry are as
follows:
•
•
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Device-Specific
AO 0 DAC0
AO 1 DAC1
DAC2
AO 2
AO 3
DAC3
Figure 5-1. X Series Analog Output Circuitry
DACs—Digital-to-analog converters (DACs) convert digital codes to
analog voltages.
AO FIFO—The AO FIFO enables analog output waveform
generation. It is a first-in-first-out (FIFO) memory buffer between the
computer and the DACs. It allows you to download the points of a
waveform to your X Series device without host computer interaction.
5-1
Information, for information about the
AO FIFO AO Data
AO Sample Clock
AO Reference Select
X Series User Manual
5