Analog-to-digital converter for differential signals

Details Analog-to-digital converter for differential signals Analog-to-digital converter for differential signals

H - Electricity

03

M

H03M 1/12 (2006.01) H03K 5/24 (2006.01) H03M 1/36 (2006.01)

Patent

CA 2222848

For certain high-speed applications, where high-precision is not required analog-to-digital conversion may be performed by employing several comparators, each having their own offset. Each such comparator with an offset may be constructed by employing a differential amplifier with an offset followed by a conventional comparator. Advantageously, the time to obtain a conversion to digital of an analog sample is reduced in comparison to prior art converters, thus enabling high-speed operation.

Dans certaines applications rapides où une grande précision n'est pas nécessaire, on peut effectuer une conversion analogique-numérique en utilisant une pluralité de comparateurs ayant chacun son décalage propre. Chacun d'eux peut être construit en utilisant un amplificateur différentiel avec décalage suivi d'un comparateur ordinaire. Ceci a l'avantage de réduire le temps de conversion numérique des échantillons analogiques comparativement aux convertisseurs courants et, par conséquent, d'accélérer l'opération.

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