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Chapter 4
Signal Connections
Signal
Source
+
V s
1
-
Digital I/O Signal Connections
PC-LPM-16/PnP User Manual
3
4
5
+
+
V
V
S2
S3
18
-
-
1, 2
AIGND
I/O Connector
Figure 4-2. Analog Input Signal Connections
See Table 4-1 for the digital I/O pin descriptions.
The following specifications and ratings apply to the digital I/O lines:
•
Absolute maximum
voltage input rating
•
Digital input compatibility
•
Input current (high or low level)
•
Digital output compatibility
•
Output current source capability 8 mA, at V
•
Output current sink capability
ACH<0..15>
+
Input Multiplexer
-
PC-LPM-16PnP
+7.0 V with respect to DGND
-0.5 V with respect to DGND
TTL-compatible
10 A
TTL-compatible
6 mA, at V
4-6
Operational
Amplifier
+
Measured
Voltage
V
M
-
= 2.7 V
OH
= 0.5 V
OL
National Instruments Corporation
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