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National Instruments Corporation
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NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT
Note
The analog input and analog output of the NI sbRIO-963
x
/9632XT/964
x
/9642XT
share an internal power supply. Putting the analog input into Sleep Mode turns off analog
output as well. However, putting analog output into Sleep Mode does not turn off analog
input.
Integrated Analog Output
(NI sbRIO-963
x
/9632XT/964
x
/9642XT
Only)
Connector J7 of the NI sbRIO-963
x
/9632XT/964
x
/9642XT provides
connections for four analog output channels. Refer to the
I/O and Other
Connectors on the NI sbRIO Device
section for a pinout of connector J7.
The integrated analog output of the NI sbRIO device is similar to that of the
NI 9263, but there is no isolation. Each channel has a digital-to-analog
converter that produces a voltage signal. Each channel also has overvoltage
and short-circuit protection. Refer to the
Specifications
section for
information about the overvoltage and short-circuit protection.
Figure 21 shows the analog output circuitry for one channel.
Figure 21.
Analog Output Circuitry for One Channel
When you apply power to the NI sbRIO device, analog output channels are
unpowered until data is written to them. When the channels receive the first
data, they turn on and drive the output voltage configured in software. This
behavior is similar to that of the NI 9263. Refer to the
Specifications
section
for more information about power-on voltage. Refer to the software help
for information about configuring startup output states in software.
AO
AO GND
Amplifier
DAC
Overvoltage/
S
hort-Circuit
Protection
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