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Electric Circuits and Networks, Ist Edition by Pearson
book

Electric Circuits and Networks, Ist Edition by Pearson

by K. S. Suresh Kumar
May 2024
Intermediate to advanced content levelIntermediate to advanced
840 pages
45h 20m
English
Pearson India
Content preview from Electric Circuits and Networks, Ist Edition by Pearson
These voltages form the two inputs of a single-Opamp subtractor circuit with unity
gain. Therefore, the final output taken across the output of the third Opamp with respect to
the ground node is given by v
o
v
o1
v
o2
(2k 1)(v
1
v
2
).
It may be verified that v
o1
v
1
and v
o2
v
2
when v
1
v
2
, quite independent of the
resistance values of the resistors in the three-resistor chain. This is so because, when v
1
v
2
, there is no current flow in them at all. Thus, the first stage comprising two Opamps con-
tributes the required differential gain without affecting the common mode gain. The second
stage contributes only unity gain to (v
o1
v
o2
). The common mode ...
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Publisher Resources

ISBN: 9781299447028