High speed comparator having two differential amplifier stages and latch stage
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United States of America Patent
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Apr 23, 1996
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N/A
app pub date -
Jun 14, 1995
filing date -
Jun 14, 1994
priority date (Note) -
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Abstract
In a comparator including a first differential amplifier stage for amplifying the difference in potential between input signals, a second differential amplifier stage for amplifying the difference in potential between output signals of the first differential amplifier stage, and a latch stage for positively feeding output signals of the second amplifier stage back thereto, a first differential switch circuit alternately activates the second differential amplifier stage and the latch stage, and a second differential switch circuit alternately activates the first differential amplifier stage and the latch stage.
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