Integrated Analog Output
The sbRIO-9637 has four 16-bit AO channels capable of driving ±10 V. All AO channels are
ground-referenced. Connector J5 provides connections for analog inputs, outputs, and grounds.
Figure 30. Analog Output Channel
DAC
Gain and
Protection
Analog Output
AO 10 V Nominal
AO GND
/
–
+
Analog Output Startup and Initialization
The analog output on the NI sbRIO device does not get powered until the first time the FPGA
is loaded after applying board power. The analog output is activated and initialized to 0 V the
first time the FPGA is loaded with a bitfile in which either AI or AO functionality of the board
is used. The AO is re-initialized to 0 V every time the FPGA is loaded with a bitfile containing
AI or AO functionality.
Power Requirements
The NI sbRIO device requires a 9 VDC to 30 VDC external power supply.
Wiring the Power Supply Connector
Wire the power supply connector as shown in the following figure.
NI sbRIO-9637 User Manual | © National Instruments | 37
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