Open AccessBook
Understanding Delta-Sigma Data Converters
Reads0
Chats0
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
More filters
Dissertation
Precision ADC for a Hybrid zoom architecture
TL;DR: The design achieves a very stable operation across all the variations introduced in the converter, having a maximum offset error of 0.5 LSB, and is able to achieve an absolute accuracy of 16.93 bits for the typical corner.
Patent
Coarse-fine quantization architecture for multiphase VCO-based ADCs
Buffa Cesare,Cardes Garcia Fernando,Hernandez-Corporales Luis,Perez Cruz Carlos Andres,Quintero Alonso Andres,Wiesbauer Andreas +5 more
TL;DR: In this paper, an analog-to-digital converter includes a ring oscillator having an input for receiving an analog signal, a coarse Gray code counter having a first input coupled to a first output of the ring oscillators and a second output for receiving a clock signal, and an adder having an output for providing a digital signal corresponding to the analog signal.
Proceedings ArticleDOI
Design of High-Precision Low-Power Interpolation Modules with Modified SINC Filters
TL;DR: In this paper, the authors presented a proper method for reducing the power consumption of a SINC filter with different stage orders, which can reduce power consumption while simultaneously keeping the performance as high as that in the conventional case.
Proceedings ArticleDOI
STF behaviour in optimised for ELD cascaded CT Delta-Sigma Modulators
TL;DR: It will be shown that the noise-shaping performance of a CTDSM can be improved by optimising to take advantage of the ELD induced loop-filter order increase at the expense of the Anti-Alias Filter response.
References
More filters
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.