National Instruments AT-MIO-16X - Manual (Page 52)

Chapter 2 Configuration and Installation
AT-MIO-16X User Manual 2-30 © National Instruments Corporation
The following ranges and ratings apply to the EXTREF input:
Normal input voltage range ±10 V peak with respect to AO GND
Usable input voltage range ±18 V peak with respect to AO GND
Absolute maximum ratings ±30 V peak with respect to AO GND
AO GND is the ground reference point for both analog output channels
and for the external reference signal.
Figure 2-11 shows how to make analog output connections and the
external reference input connection to the AT-MIO-16X board.
Figure 2-11. Analog Output Connections
The external reference signal can be either a DC or an AC signal. This
reference signal is multiplied by the DAC code to generate the output
voltage.
+
-
+
-
+
-
V
ref
Channel 0
Channel 1
External
Reference
Signal
(Optional)
Load
Load
VOUT 0
VOUT 1
DAC1 OUT
AO GND
DAC0 OUT
EXTREF
Analog Output Channels
AT-MIO-16X Board