| 摘要 |
The comparator includes a differential stage having a first input and a second input, an output stage in which the output is zero when the two inputs have therebetween a specific voltage difference, and a biasing stage providing a first biasing voltage and a second biasing voltage for respectively creating a second input voltage and a first input voltage respectively in the second and first inputs such that the two input voltages have therebetween the specific voltage difference. A method for forming the same includes steps of a) providing the differential stage, b) providing the output stage and c) providing the biasing stage which has a characteristic dependent on a manufacturing parameter such that the specific voltage difference is independent of the manufacturing parameter.
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