High-accuracy capacitor digital-to-analog converter

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United States of America Patent

PATENT NO 7123072
SERIAL NO

10128663

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Abstract

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A capacitor digital-to-analog converter for N-bit digital-to-analog conversion comprises a converter capacitor network comprising 2.sup.N capacitors and 2.sup.N+1 MOS switches and an output buffer. The MOS switches are connected in a series chain at their respective source/drain, and each of the capacitors has a first electrode connected to a corresponding joining node between two consecutive MOS switches in the series chain and a second electrode connected together to a common node. The output buffer comprises a differential amplifier and an output amplifier, the differential amplifier has 2.sup.N discrete inputs each connected to a corresponding one of the first electrodes of the capacitors in the converter capacitor network.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HIMAX TECHNOLOGIES LIMITEDTAINAN COUNTY608
Himax Opto-Electronics Corp.TAINAN HSIEN1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bu, Linkai Tainan, TW 5 138
Chen, Chien-Pin Tainan, TW 17 47
Hsiao, Chuan-Cheng Jiayi, TW 15 66
Hung, Kun-Cheng Hsinchu, TW 9 83

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