eIN
15
4
+15V
x1000
12
5
11
V1
INA102
6
eOUT
7
9
14
10
–15V
Ground Resistance
FIGURE 14. Ground Resistance Loop Eliminator (INA102 senses and amplifies V1 accurately).
+15V
12
15
+In
3
x 100
7
6
11
∆eIN
INA102
10
14
–In
9
–15V
+15V
12
∆eOUT
15
3
+In
x 100
7
11
INA102
6
10
14
–In
9
Overall Gain = ∆eOUT/∆eIN = 200
–15V
FIGURE 15. Differential Input/Differential Output Amplifier (twice the gain of one INA).
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