National Instruments PC-LPM-16/PnP 사용자 설명서
Chapter 4 Signal Connections
PC-LPM-16/PnP User Manual
4-6
National Instruments Corporation
Figure 4-2.
Analog Input Signal Connections
Digital I/O Signal Connections
The following specifications and ratings apply to the digital I/O lines:
•
Absolute maximum
+7.0 V with respect to DGND
voltage input rating
-0.5 V with respect to DGND
•
Digital input compatibility
TTL-compatible
•
Input current (high or low level)
±
10
µ
A
•
Digital output compatibility
TTL-compatible
•
Output current source capability 8 mA, at V
OH
= 2.7 V
•
Output current sink capability
6 mA, at V
OL
= 0.5 V
+
+
-
-
V
M
ACH<0..15>
Input Multiplexer
Operational
Amplifier
I/O Connector
3
4
5
18
1, 2
PC-LPM-16PnP
AIGND
-
+
-
Signal
Source
Measured
Voltage
Vs
1
+
-
V
S2
+
V
S3
a.Book : h.chapter 4 Page 6 Wednesday, November 20, 1996 6:36 PM