Comparator with improved time constant
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United States of America Patent
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Dec 10, 2013
Grant Date -
Jun 13, 2013
app pub date -
Dec 12, 2011
filing date -
Dec 12, 2011
priority date (Note) -
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Abstract
An apparatus for comparing differential input signal inputs is provided. The apparatus comprises a CMOS sense amplifier (which has having a first input terminal, a second input terminal, a first output terminal, and a second output terminal), a first output circuit (which has a first load capacitance), a second output circuit (which has a second load capacitance), and an isolation circuit. The isolation circuit is coupled between the first output terminal of the CMOS sense amplifier and the first output circuit and is coupled between the second output terminal of the CMOS sense amplifier and the second output terminal of the CMOS sense amplifier. The isolation circuit isolates the first and second load capacitances from the CMOS sense amplifier.
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