Using Recursive Multibit ΣΔ Modulators to Reduce the Quantization Noise Power


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Schinkel, Daniël and Tuijl, Ed van and Annema, Anne-Johan (2004) Using Recursive Multibit ΣΔ Modulators to Reduce the Quantization Noise Power. In: ProRISC 2004, 15th Annual Workshop on Circuits, Systems and Signal Processing, 25-26 Nov 2004, Veldhoven, the Netherlands (pp. pp. 589-593).

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Abstract:This paper discusses a recursive multibit ΣΔ architecture that enables a high effective quantizer resolution while needing only a limited number of DAC elements. The recursive architecture consists of a set of ΣΔ modulators, whereby each stage cancels the quantization noise of the preceding stage. Conventional DEM algorithms can be used in each stage to reduce the
sensitivity to mismatch. The architecture enables a significant reduction of both the signal-band and out-of-band quantization noise power, compared to conventional multibit ΣΔ converters.
Item Type:Conference or Workshop Item
Copyright:© STW, Technology Foundation 2004
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/59506
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