Analog Output; Analog Output Circuitry - National Instruments NI USB-621x User Manual

Analog Output

AO 0
AO 1

Analog Output Circuitry

© National Instruments Corporation
Many M Series devices have analog output functionality. NI 621x devices
that support analog output have two AO channels controlled by a single
clock and capable of waveform generation. Refer to Appendix A,
Device-Specific Information, for information about the capabilities of your
device.
Figure 7-1 shows the analog output circuitry of M Series devices.
DAC0
AO FIFO
DAC1
AO Sample Clock
Figure 7-1. M 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
Isolation
Barrier
(USB-6215
and USB-6218
devices only)
Digital
Isolators
7-1
7
AO Data
NI USB-621x User Manual