Method and system for minimizing the accumulated offset error for an analog to digital converter
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United States of America Patent
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Apr 22, 2014
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N/A
app pub date -
Oct 31, 2011
filing date -
Jan 25, 2005
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Abstract
A method and system utilized with an analog to digital converter is disclosed. The method and system comprise providing a first conversion on an input signal. In the first conversion, an offset error is added to the input signal to provide a first result. The method and system further includes providing a second conversion on the input signal. In the second conversion, an offset error is subtracted from the input signal to provide a second result. The first and second results are then combined to substantially remove the offset error. A system and method in accordance with the present invention compensates for the accumulated offset error over many samples, thereby achieving much higher accuracy in the offset error compensation.
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