Dynamic Element Matching to Prevent Nonlinear Distortion From Pulse-Shape Mismatches in High-Resolution DACs

Chan, Kok Lim; Zhu, Jianyu; Galton, I.

doi:10.1109/jssc.2008.2001931

Cited by 64 publications

(33 citation statements)

References 13 publications

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“…Recently, segmented DEM DACs have been developed that overcome this problem [7], [28], [29]. Segmented DEM DACs have the same general structure shown in Fig.…”

Section: Extension To Segmented Dacsmentioning

confidence: 99%

“…D YNAMIC-ELEMENT-MATCHING (DEM) digital-toanalog converters (DACs) have enabled major performance improvements over the last decade in oversampling delta-sigma data converters, pipelined ADCs, and highresolution Nyquist-rate DACs [1]- [7]. In many cases, they effectively eliminate component mismatches as a performancelimiting source of error.…”

Section: Introductionmentioning

confidence: 99%

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Why Dynamic-Element-Matching DACs Work

Galton

2010

IEEE Trans. Circuits Syst. II

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This jump-start tutorial brief explains the principle that underlies all of the published mismatch-scrambling and mismatch-shaping dynamic-element-matching (DEM) digital-toanalog converters (DACs). It explains the apparent paradox of how an all-digital algorithm can cause analog component mismatches to introduce spectrally shaped noise instead of nonlinear distortion, even though the algorithm has no knowledge of the actual mismatches. The concept is first explained in the context of a discrete-time three-level DEM DAC. The results are then generalized to an arbitrary number of levels, to segmented DEM DACs, and to continuous-time DEM DACs.Index Terms-Digital-to-analog converter (DAC), dynamic element matching (DEM), mismatch scrambling, mismatch shaping.

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“…Recently, segmented DEM DACs have been developed that overcome this problem [7], [28], [29]. Segmented DEM DACs have the same general structure shown in Fig.…”

Section: Extension To Segmented Dacsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Why Dynamic-Element-Matching DACs Work

Galton

2010

IEEE Trans. Circuits Syst. II

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“…For example, the output dynamic of analog cells can be expanded by a digitally controlled dynamic level shifting. Architectures can be digitally reconfigured for an optimum use of power and so forth [21][22][23][24].…”

Section: Digitally Assisted Analogmentioning

confidence: 99%

High-performance data converters: Trends, process technologies and design challenges

Maloberti

2008

APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems

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High-performance electronic systems use more and more use high-performance data converters for improving and shaping the architecture and opening new application perspectives. The current and future trend depends on old and new factors that include global economy, technology evolution and marketing. All these elements are driving forces and create new challenges for the designer that answer the requests of new applications by exploiting the advantages and limiting the drawbacks due to the amazing growth of process technologies.

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“…The edge-interchange scheme, which achieves dynamic element matching [4], doubles the equivalent number of arbiters and thereby improves the resolution by a factor of two. We also discuss the limitation on the phase difference between input clocks, which is caused by the arbiter and the edgeinterchange circuit.…”

Section: Introductionmentioning

confidence: 99%

A high-resolution stochastic time-to-digital converter with edge-interchange scheme

Wang

2013

IEICE Electron. Express

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Abstract:A high-resolution stochastic time-to-digital converter (STDC) using an edge-interchange scheme is described. The proposed STDC provides a higher resolution but consumes less power than previous STDCs that gave the same resolution. The limitation on input phase difference caused by the arbiter and the edge-interchange circuit is analyzed. Simulated results show that for the task proposed herein, a resolution of up to 0.3 ps is achieved while only 1.7 mW is consumed. Furthermore, higher resolution is achieved, more power will be reduced by using the edge-interchange circuit.

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Dynamic Element Matching to Prevent Nonlinear Distortion From Pulse-Shape Mismatches in High-Resolution DACs

Cited by 64 publications

References 13 publications

Why Dynamic-Element-Matching DACs Work

Why Dynamic-Element-Matching DACs Work

High-performance data converters: Trends, process technologies and design challenges

A high-resolution stochastic time-to-digital converter with edge-interchange scheme

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