Time interleaved analog to digital converter
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United States of America
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Nov 12, 2024
Grant Date -
May 11, 2023
app pub date -
Jul 22, 2022
filing date -
Jul 22, 2022
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Abstract
A time-interleaved analog to digital converter includes coarse converter circuitries, a control logic circuit, first and second transfer circuits, a fine converter circuitry, and an encoder circuit. The coarse converter circuitries sequentially sample an input signal and perform coarse conversions to generate decision signals. The control logic circuit generates coarse digital codes according to the decision signals. The first and second transfer circuits respectively transfer first and second residue signals. The fine converter circuitry performs a fine conversion according to a corresponding first residue signal and a corresponding second residue signal to generate a fine digital code. A sampling interval for sampling the input signal and a coarse conversion interval for performing the coarse conversion are determined based on a fine conversion interval for performing the fine conversion. The encoder circuit generates a digital output according to a corresponding coarse digital code and the fine digital code.
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