Low glitch current digital-to-analog converter

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United States of America Patent

PATENT NO 8872686
APP PUB NO 20140266831A1
SERIAL NO

13858445

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Abstract

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The present disclosure relates to a method and architecture to minimize a transient glitch within a current digital-to-analog converter (DAC) comprising an array of identical current unit cells. The current DAC is configured with individual column decoders for even and odd rows of current unit cells, thus allowing for independent control of adjacent rows. The even row and odd row column decoders further comprise thermal decoders with coupled timing encoding which establishes synergy between an adjacent pair of rows. As current units cells within an active row are activated across the row by a counting up of a first column decoder, the current units cells within a next row adjacent the active row are returned to an initial state of the active row by counting down in a second column decoder. Other devices and methods are also disclosed.

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Patent Owner(s)

  • TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chao, Calvin Yi-Ping Zhubei, TW 41 312
Chen, Yi-Che Taichung, TW 15 58
Chou, Kuo-Yu Hsinchu, TW 75 588
Tao, Wei Lun Hsinchu, TW 3 17
Yeh, Shang-Fu Hsinchu, TW 35 93

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