A low-power 8-b 1 3.5-MHz video CMOS ADC for visiophony ISDNapplications |
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Authors: | Abrial A. Bouvier J. Fournier J.-M. Senn P. |
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Affiliation: | CNET, Meylan; |
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Abstract: | A half-flash, subranging, 8-b, 13.5-MHz, video ADC (analog-to-digital converter) using overlapped architecture that combines the advantages of both flash and half-flash converters is described. Its conversion rate is that of a flash, without any multiplexing and with a low number of comparators. Its low power consumption and the small silicon area required for its implementation enable it to be integrated in mixed digital/analog circuits such as a video acquisition circuit devoted to visiophony applications. It has been manufactured using a CMOS 1-μm technology with two polysilicon and two metallization layers |
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