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Chapter 3
– 27 – PCI-1712/1712L User’s Manual
Advantech Co., Ltd.
www.advantech.com
3.4 Analog Output Connections
The PCI-1712 provides two D/A output channels, AO0_OUT and
AO1_OUT. Users may use the PCI-1712 internally-provided precision
+5V (+10V) reference to generate 0 ~ +5 V and 0 ~ +10 V unipolar D/A
output range; or to generate -5 ~ +5 V and -10 ~ +10 V for bipolar
output range.
Users may also set D/A output range through external references,
AO0_REF and AO1_REF. The external reference input range is 0~10
V. For example, connecting with an external reference of +7 V will
generate 0 ~ +7 V D/A output for unipolar; and -7 ~ +7 V for bipolar.
Figure 3-5 shows how to make analog output and external reference
input connections on the PCI-1712.
Figure 3-5: Analog output connections
+
+
_
_
I/O Connector
External Reference
For DA
Signal 0
External Reference
For DA
Signal 1
External
AO0
AO1
Load
Load
AO0_REF
AO1_REF
AO1_OUT
AO0_OUT
AOGND
INT_REF
INT_REF
DATA BUS
+5V
+10V
Internal