LARGE SCALE ERROR REDUCTION IN DITHERED ADC

J. Holub, O. Aumala

Abstract

The combination of dithering and correcting table is the way of improvement not only of ADC resolution but also of linearity - effective number of bits. Dithering is used to reduce small-scale errors, such as quantization error, while correcting table reduces large-scale errors.<BR />The contribution describes design and practical experience with ADC unit based on single-chip micro-controller 80C552 that uses above described correction procedure. Sub-quantum accuracy has been achieved.

Keywords

Analogue-to-Digital converter, dithering, large scale errors

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IMEKO-WC-2000-EWADC-P625.pdf

DOI

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