Open AccessBook
Understanding Delta-Sigma Data Converters
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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Proceedings ArticleDOI
An 85 dB SNDR third-order ΔΣ modulator for audio applications
TL;DR: A 1.8 V 1 mW single-loop third-order delta sigma modulator is presented for audio applications, which achieves 85.1 dB SNDR in 20 kHz signal bandwidth with a sampling frequency of 5.12 MHz.
Book ChapterDOI
How are bits played back from an audio CD
T. Dutoit,R. Schreier +1 more
TL;DR: The essential tool for this is the digital-to-analog converter (DAC), which is taken for granted that the stream of 16-bit digital information it contains can easily be made available to their ears in the analog world in which the authors live.
A reconfigurable low-pass/high-pass DR ADC suited for a zero-IF/ low-IF receiver
TL;DR: The main degree of freedom is the choice of the noise shaping between low-pass and high-pass, which makes the analog-to- digital converter compliant for both the low-IF and the zero-IF receiver architectures.
Dissertation
Passive reference-sharing SAR ADC for ultra low power applications
TL;DR: A complete review of a PRS SAR ADC is presented, analyzing its design-space and performance bounds and an optimized design for an 8-bit ADC is proposed and implemented using a 0.13 μm technology process, suitable for ultra low power applications.
Dissertation
Design of sigma-delta modulators for analog-to-digital conversion intensively using passive circuits
TL;DR: ........................................................................ v Resumo...................................................................................................................................... vii Table of contents.
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.