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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
A Low-Noise Transimpedance Amplifier for BLM-Based Ion Channel Recording.
Marco Crescentini,Marco Bennati,Shimul Chandra Saha,Josip Ivica,Maurits R.R. de Planque,Hywel Morgan,Marco Tartagni +6 more
TL;DR: This paper presents a low-noise transimpedance amplifier with integrated A/D conversion realized in CMOS 0.35 μm technology, which is embedded in an integrated platform, together with a microfluidic device, for current recording from ion channels.
Proceedings ArticleDOI
Two-stage ΔΣ ADC with noise-coupled VCO-based quantizer
Mahmoud Sadollahi,Gabor C. Temes +1 more
TL;DR: A noise-coupled VCO-based two-stage delta-sigma ADC, which achieves third-order noise-shaping with only one active integrator to overcome the nonlinearity of the VCO.
Proceedings ArticleDOI
A Hybrid 4 th -Order 4-Bit Continuous-Time ΔΣ Modulator in 65-nm CMOS Technology
TL;DR: This paper reports a fourth-order continuous-time (CT) delta-sigma modulator (DSM) that features a single biquad integrator, a passive integrator and an active integrator that achieves an excellent figure of merit around 175 dB compared to existing state-of-the-art.
Proceedings Article
Design trade-offs for linear-phase FIR decimation filters and ΣΔ-modulators
TL;DR: It is demonstrated that, for any given filter order, there exists an optimum choice of the stopband ripple and stopband edge which minimizes the signal-to-noise-ratio degradation.
Proceedings ArticleDOI
eSYSID: A proposal for a flexible electronic SYStem IDentification test bench
TL;DR: In this article, the authors provide a first architectural study of a digitally-programmable analog test bench, which describes the nonlinear state-space equations using nonlinear functions and integrators, and the initial architectural structure is described to give the potential users the ability to evaluate the possible use of the test bench.
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.