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What is differential input voltage (VID) of an operational amplifier?

Latest Updated:04/01/2008

Question:

What is a differential input voltage (VID) of an operational amplifier?

Answer:

It is the maximum input voltage that can be applied between two input pins. Its polarity is reversed depending on which input pin is used as a reference. Therefore, the maximum absolute value is defined by appending a positive (+) or a negative (-) sign.
If a potential difference greater than this value were to be applied, the first-stage transistor characteristics could be degraded or the transistor could be damaged.



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