Dynamic offset cancellation in sigma-delta converter

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United States of America Patent

PATENT NO 9385746
SERIAL NO

14811311

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Abstract

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A sigma-delta converter, analog-to-digital conversion system, and an Integrated Circuit (IC) chip are disclosed that include a main sigma-delta modulator and an auxiliary sigma-delta modulator. The auxiliary sigma-delta modulator is electrically matched with the main sigma-delta modulator and is configured to generate an output that is incorporated into a feedback loop of the main sigma-delta modulator to enable the main sigma-delta modulator to adjust an offset signal applied at a main analog channel.

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Patent Owner(s)

Patent OwnerAddress
AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LIMITEDSINGAPORE 768923

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ng, Gek Yong Singapore, SG 18 313
Tao, Qian Singapore, SG 100 812

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