High speed sense amplifier
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United States of America Patent
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Sep 28, 2004
Grant Date -
Jul 8, 2004
app pub date -
Oct 28, 2002
filing date -
Aug 7, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A high-speed sense current amplifier with a low power consumption for a memory cell, the sense current amplifier having: a first current mirror circuit, which amplifies a memory signal current received from the memory cell via a memory signal line and outputs it at a signal output of the sense current amplifier; a second current mirror circuit, which generates a setting current in a manner dependent on the received memory signal current; and an adjustable reference current source, which outputs a reference current to the signal output of the sense current amplifier, the magnitude of the output reference current being set, via a setting line, in a manner dependent on the setting current generated by the second current mirror circuit.
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