| 摘要 |
A comparator includes a sampling section for respectively obtaining first and second voltage signals from first and second target voltage signals. An amplifier section includes first and second amplifiers and amplifies the obtained first and second voltage signals by the first and second amplifiers, respectively. A shifting section shifts the obtained first and second voltage signals into predetermined operation ranges of the first and second amplifiers in voltage level, respectively. A latching section latches outputs of the first and second amplifiers to output data determined based on the first and second voltage signals.
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