SAR ANALOG-TO-DIGITAL CONVERTER WITH HIGH-ORDER NOISE-SHAPING CHARACTERISTICS
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
Feb 22, 2024
filing date -
Feb 23, 2023
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Abstract
The present invention relates to a successive approximation register (SAR) analog-to-digital converter and the SAR analog-to-digital converter according to an example embodiment includes an input unit including at least one SAR capacitor; a recycling integrator connected to the input unit and including k integration capacitors configured to store the respective residue information generated in an integration process performed k times, respectively, (where k denotes a positive integer of 2 or more) using a single amplifier; a comparator connected to an output terminal of the recycling integrator; and a SAR controller connected to an output terminal of the comparator and configured to generate a digital signal corresponding to output of the comparator.
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