a.
Maximum value of tolerance of resistor ‘ x’for given
a.
Answer to Problem 14.61P
Maximum value of tolerance of resistor is
Explanation of Solution
Given:
The given difference amplifier circuit is,
Tolerance of each resistor is
Minimum
Calculation:
Circuit with voltage and resistance notation is,
Tolerance of each resistor is
KCL at
As op-amp is ideal, so
KCL at
Now put
If
For
For
Now,
For minimum CMRR maximize the denominator, that is
and
Therefore,
As x is very small. So neglect
b.
Maximum value of tolerance of resistor ‘ x’ for given
b.
Answer to Problem 14.61P
Maximum value of tolerance of resistor is
Explanation of Solution
Given:
The given difference amplifier circuit is;
Tolerance of each resistor is
Minimum
Calculation:
Minimum
Using equation (4)
Put the value of
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Chapter 14 Solutions
Microelectronics: Circuit Analysis and Design
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