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vvkannan
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1.My text says 'most of the op-amps use differential amplifier as the input stage.The two transistors must be biased correctly.But it is not possible to get exact matching of two transistors.Thus the input terminals which are the base terminals of the transistors do conduct small dc current'.
I can't understand this.If the characteristics of the two transistors are not similar would it result in the op-amp drawing small dc current?.
2.There's one line which says the op-amp characteristics do not depend on temperature and there's another statement which states the input-offset voltage depends on temperature.which is true?
I can't understand this.If the characteristics of the two transistors are not similar would it result in the op-amp drawing small dc current?.
2.There's one line which says the op-amp characteristics do not depend on temperature and there's another statement which states the input-offset voltage depends on temperature.which is true?
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