National Instruments SCB-68A User Manual

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Chapter 2 Analog Input and Temperature Sensor Measurements
Analog Input Circuitry and Channel Pad
Configuration
When you use the SCB-68A with a 68-pin or 100-pin MIO DAQ device, you can use the
component pads on the SCB-68A to condition 16 AI channels. Figure 2-1 shows the analog
input and CJC circuitry on the SCB-68A.
Figure 2-1. Analog Input and Cold-Junction Compensation Circuitry
AI 0
(I/O Pin 68)
S1.1
CJC Not Used
CJC Used
R38
Q1
+5 V
C3
(0.1 μF)
C5
(1 μF)
C
+5 V
G
AI 8
Screw
Terminal
(I/O Pin 34)
S1.2
AI 8
(I/O Pin 34)
RSE CJC
or Non-MIO
DIFF CJC
AI
AI
AI
AI GND
D
+
User-Configurable
A
+5 V
AI 0
Screw
Terminal
(I/O Pin 68)
AI GND
B
+
User-Configurable
F

National Instruments SCB-68A Specifications

General

Brand	National Instruments
Model	SCB-68A
Category	Cables and connectors
Language	English