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Understanding Delta-Sigma Data Converters
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TLDR
This chapter discusses the design and simulation of delta-sigma modulator systems, and some of the considerations for implementation considerations for [Delta][Sigma] ADCs.Abstract:
Chapter 1: Introduction.Chapter 2: The first-order delta-sigma modulator.Chapter 3: The second-order delta-sigma modulator.Chapter 4: Higher-order delta-sigma modulation.Chapter 5: Bandpass and quadrature delta-sigma modulation.Chapter 6: Implementation considerations for [Delta][Sigma] ADCs.Chapter 7: Delta-sigma DACs.Chapter 8: High-level design and simulation.Chapter 9: Example modulator systems.Appendix A: Spectral estimation.Appendix B: The delta-sigma toolbox.Appendix C: Noise in switched-capacitor delta-sigma data converters.read more
Citations
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Peer ReviewDOI
An Introduction to High Sample Rate Nyquist Analog-to-Digital Converters
TL;DR: An overview article aims to introduce this topic and to point to some of the most notable results, while also highlighting open problems and engineering trends.
Journal ArticleDOI
An Analysis of Noise in Multi-Bit ΣΔ Modulators with Low-Frequency Input Signals
TL;DR: The aim is to understand and quantify in-band noise power increments, and to desensitize the ADC from the undesired input patterns, by means of deterministic and stochastic methods.
Proceedings ArticleDOI
Delta-Sigma Modulator Design Using a Memristive FIR DAC
TL;DR: In this paper , the authors proposed a first-order single-bit continuous-time Delta-Sigma modulator using a memristive finite impulse response (FIR) digital-to-analog converter (DAC) in the feedback.
Loopback TestandErrorCorrection ofDataConverters
TL;DR: A novel approach is proposed, which shifts thefrequency selectivity intothedigital domain and improves accuracy and dynamic range oftechniques based on these principles.
Proceedings ArticleDOI
Performance tuning of multi-bit continuous time ΣΔ-modulators using a switched system model
TL;DR: This paper presents an approach to analyze and tune the dynamics of multi-bit continuous time ΣΔ modulators based on a switched system model that is possible to tune the maximum stable input amplitude and the maximum signal to noise ratio to an optimum directly in continuous time.
References
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Journal ArticleDOI
A higher order topology for interpolative modulators for oversampling A/D converters
TL;DR: Higher order modulators are shown not only to greatly reduce oversampling requirements for high-resolution conversion applications, but also to randomize the quantization noise, avoiding the need for dithering.
Journal ArticleDOI
Decimation for Sigma Delta Modulation
TL;DR: It is shown that digital filters comprising cascades of integrate-and-dump functions can match the structure of the noise from sigma delta modulation to provide decimation with negligible loss of signal-to-noise ratio.
Journal ArticleDOI
An analysis of nonlinear behavior in delta - sigma modulators
Sasan H. Ardalan,J.J. Paulos +1 more
TL;DR: This paper introduces a new method of analysis for deltasigma modulators based on modeling the nonlinear quantizer with a linearized gain, obtained by minimizing a mean-square-error criterion, followed by an additive noise source representing distortion components.
Book ChapterDOI
The Structure of Quantization Noise from Sigma-Delta Modulation
James C. Candy,O. Benjamin +1 more
TL;DR: Simple algebraic expressions for this modulation noise and its spectrum in terms of the input amplitude are derived and can be useful for designing oversampled analog to digital converters that use sigma-delta modulation for the primary conversion.
Journal ArticleDOI
A fourth-order bandpass sigma-delta modulator
TL;DR: The modulator of a bandpass analog/digital (A/D) converter, with 63 dB signal/noise for broadcast AM bandwidth signals centered at 455 kHz, has been implemented by modifying a commercial digital-audio sigma-delta ( Sigma Delta ) converter.