Circuit and method for improving sense amplifier reaction time in memory read operations
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United States of America Patent
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Jun 9, 2015
Grant Date -
May 8, 2014
app pub date -
Nov 7, 2012
filing date -
Nov 7, 2012
priority date (Note) -
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Abstract
A sense amplifier circuit, a method of modifying a differential voltage in a sense amplifier circuit and a memory system incorporating the sense amplifier circuit or the method are described. The sense amplifier circuit is described to include: (1) a differential amplifier having first and second inputs respectively couplable to first and second complimentary bit lines and configured to receive a differential voltage therefrom representing a current logic value to be read and (2) a sense speed alteration circuit having first and second outputs respectively coupled to the first and second inputs via respective first and second capacitors and configured to cause one of the first and second capacitors to discharge to increase the differential voltage when a previously read logic value is opposite the current logic value to be read.
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