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Find the output voltage of squarer circuit?

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+1 vote
in Linear Integrated Circuits by (39.8k points)
Find the output voltage of squarer circuit?

(a) Vo = √( Vref/|Vin|)

(b) Vo = √( Vref×|Vin|)

(c) Vo = √( Vref^2×|Vin|)

(d) Vo = √( Vref×|Vin|^2)

The question was asked in an internship interview.

This key question is from Multiplier and Divider topic in division Operational Amplifier Applications of Linear Integrated Circuits

1 Answer

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by (39.8k points)
Accurate answer is (b) Vo = √( Vref×|Vin|)

For the easiest explanation: The output of the square root circuit is proportional to the square root of the magnitude of the input voltage.

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