Analog-digital converting device and method having a successive approximation register analog-digital converting circuit and a single-slop analog-digital converting circuit, and image sensor including the same
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United States of America Patent
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May 30, 2017
Grant Date -
Oct 22, 2015
app pub date -
Nov 17, 2014
filing date -
Apr 22, 2014
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Abstract
An analog-digital converting device includes a successive approximation register (SAR) analog-digital converting circuit suitable for resolving upper N-bits for an input signal, a single-slope (SS) analog-digital converting circuit suitable for resolving lower M-bits for the input signal after the SAR analog-digital converting circuit resolves the upper N-bits, and a combining circuit suitable for combining the upper N-bits and the lower M-bits.
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