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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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Journal ArticleDOI
Effects of Rounding and Truncating Methods of Quantization Error and SQNR for Sine Signal
Alaaldin Hasso,Karwan Jacksi +1 more
TL;DR: This paper compares the rounding and truncating methods of QE for sine signal, signal to quantization noise ratio, correlation coefficient, and regression equation of a line for both methods.
Dissertation
Galvanically isolated transmission of analog control signals and study of commercial state of the art technology for satellites and launchers
TL;DR: In this paper, the authors presented a state-of-the-art DC/DC converter unit with a galvanically isolated flyback topology with a feedback path, which is currently operational in space, but there exists potential for improvements of the feedback path and therefore a thesis has been created.
Journal ArticleDOI
A 1.1 V 81.8 dB Delta-Sigma ADC
Won-Tak Choi,Gil-Cho Ahn +1 more
TL;DR: A 1.1 V 81.8 dB delta-sigma analog-to-digital converter (ADC) is presented and a successive approximation register (SAR) ADC is employed to function as both multi-bit quantizer and summing adder without using an additional amplifier.
Linear-mode operation of a high-order single-bit sigma-delta modulator
TL;DR: In this paper, a simulation mathematical model of a high-order single-bit sigma-delta modulator has been proposed and both the condition and the criterion of this modulator operation in a linear mode have been formulated.
Proceedings ArticleDOI
Switched Current 12-Bit Capacity to Digital Delta-Sigma Modulator
TL;DR: The switched current (SI) technique was used in the proposal of the proposed capacity to digital converter and brings small dimensions of the chip and easy integration into the digital circuitry.
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.