| 摘要 |
Systems and methods of actively compensating for the input offset voltage of a comparator are provided. A compensation circuit may include a compensation comparator for comparing the comparison signal generated using the output signal of a comparator, to a reference voltage. A first voltage accumulator is coupled to the compensation comparator and produces a first voltage that is related to a first amount of time that the comparison signal spends above the reference voltage. A second voltage accumulator is coupled to the compensation comparator, and produces a second voltage that is related to the second amount of time that the comparison signal spends below the reference voltage. The first voltage and/or the second voltage may be used to provide one or more compensation signals to one or more of the two input terminals of the comparator.
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