| 摘要 |
A differential input circuit receives differential input signals at a pair of differential input terminals and produces a pair of first differential output signals. A sensing circuit senses at least one of the pair of first differential output signals reaching a certain voltage and provides an activation signal. A latch-type amplifier provides a pair of second differential output signals when activated in accordance with the activation signal. A cutoff circuit establishes connection between the differential input circuit and the latch-type amplifier and breaks connection between the differential input circuit and the latch-type amplifier in accordance with the activation signal.
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