Analog to digital signal converter having sampling circuit with divided integrating capacitance
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United States of America Patent
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Jul 17, 2007
Grant Date -
N/A
app pub date -
Feb 16, 2006
filing date -
Feb 16, 2006
priority date (Note) -
Expired
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Abstract
An analog-to-digital converter (ADC) includes a modulator and a decimation filter. The modulator includes a sampling circuit, integrator, a quantizer, and feedback circuitry. The sampling circuit includes at least one sampling capacitor and a plurality of dump capacitors. A sum of the capacitance of the dump capacitors is substantially equal to a capacitance of the sampling capacitors. Combined sampling/dump capacitors having approximately equal capacitance may be used with the sampling circuit.
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