MOS resistor with second or higher order compensation
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United States of America Patent
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May 18, 2010
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app pub date -
Oct 25, 2007
filing date -
Oct 25, 2007
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Abstract
A circuit arrangement (e.g., an integrated circuit) generates a second or higher order compensation voltage to compensate for variations in operation parameters (e.g., temperature and process variations). In one aspect, the compensation voltage is applied to a MOS resistor to compensate for mobility variations of the MOS resistor by maintaining a stable equivalent resistance. The compensated MOS resistor can provide a relatively stable resistance for a variety of analog circuit applications, such as a current reference.
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