High precision voltage regulation circuit for programming multilevel flash memory
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United States of America Patent
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Mar 5, 1996
Grant Date -
N/A
app pub date -
Jun 1, 1994
filing date -
Jun 1, 1994
priority date (Note) -
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Abstract
A voltage regulation circuit that includes a sample and hold circuit for sampling an input voltage and for holding a reference voltage generated in response to the input voltage. The sample and hold circuit includes a capacitor that holds the reference voltage. The voltage regulation circuit also includes a regulator circuit coupled to the capacitor of the sample and hold circuit. The regulator circuit outputs an output voltage using the reference voltage supplied by the capacitor. The voltage regulation circuit may be used to provide a high precision programming voltage for programming memory cells having two or more analog states.
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