2-4
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Chapter 2
Analog Input and Temperature Sensor Measurements
To use the SCB-68A with ground-referenced single-ended inputs, do
not
use the open positions
that connect the input to AI GND, positions B and D, for grounded sources as shown in
Figure 2-3. Build any signal conditioning circuitry requiring a ground reference in the custom
breadboard area using AI SENSE as the ground reference instead of building the circuitry in the
open component positions.
Figure 2-3.
Analog Input Channel Pad Configuration for AI <i> and AI <i+8>
AI
i
AI
i
+
8
y
S
C
x
E
A
F
G
B
C
D
+
+
+
–
+ 5 V
AI GND
+ 5 V
AI GND
AI
i
AI
i
+
8
