Simplified Logic for Tree-Structure Segmented DEM Encoders

Christian Venerus

doi:10.1109/TCSII.2016.2549618

Simplified Logic for Tree-Structure Segmented DEM Encoders

2016-11-01

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DOI：10.1109/TCSII.2016.2549618

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Abstract

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Segmented dynamic element matching (DEM) encoders can be used in high-resolution digital-to-analog converters (DACs) to reduce nonlinear distortion that would otherwise arise from component mismatches while avoiding the high circuit complexity of non-segmented DEM encoders. This paper presents tree-structure segmented DEM encoders that have several advantages over prior segmented DEM encoders: they do not require digital adders, they have latencies that are linear rather than parabolic functions of the number of bits of DAC resolution, and they have lower hardware complexity than previously published architectures.

Keywords:

Analog-to-digital conversion

digital-to-analog conversion

dynamic element matching (DEM)

encoder

segmentation

tree-structure

Simplified Logic for Tree-Structure Segmented DEM Encoders

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