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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
A Delta-Sigma Approach for Ion Channel Based Biosensor Arrays
TL;DR: A compact and low-cost electronic system to record events derived from ligand-gated ion channels embedded in an array of artificial lipid bilayer substrates is presented.
Journal ArticleDOI
An iterative LMI algorithm for quantization noise reduction in ΔΣ modulators
M. Rizwan Tariq,Shuichi Ohno +1 more
TL;DR: This paper proposes an iterative linear matrix inequality (LMI) algorithm to find a near optimal noise shaping IIR filter by solving the non-convex design problem for the noise shaping infinite impulse response (IIR) filter in the feedback of the ΔΣ modulator.
Proceedings ArticleDOI
A very high resolution DAC at 1kHz for space applications
George Tsiligiannis,Kostas Makris,Tasos Lambaounas,Dimosthenis Fragopoulos,Panagiotis Anagnostopoulos,Constantin Papadas,Jean-Pierre Schoellkopf,Boris Glass +7 more
TL;DR: A 24-bit Digital to Analog Converter using the ΣΔ modulation suitable for space applications is presented and can be used either as a stand alone device or embedded into an ASIC as an IP core.
Proceedings ArticleDOI
Bandpass Sigma-Delta Modulator for Sensor Signal Processing
Luká Fujcik,Radimir Vrba +1 more
TL;DR: The paper describes the possibilities of using the proposed enhanced system architecture for sensor signal digitization utilizing a bandpass sigma-delta modulator in impedance spectroscopy and in capacitive pressure sensor measurement.
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.