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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Journal ArticleDOI
Peak-SNR Analysis of CMOS TDCs for SPAD-Based TCSPC 3D Imaging Applications
TL;DR: This brief studies the jitter of ring-oscillator-based TDCs as a function of their full-scale-range and derives an expression for the TDC total jitter, consistent with FOMs that have been used in the past to evaluate T DCs and clarifies their underlying assumptions.
Journal ArticleDOI
Delta-Sigma feedforward topology
M. Oberst,Robert Weigel +1 more
TL;DR: A delta-sigma feedforward topology is presented, which avoids the need for an analogue adder in front of the quantiser, and achieves as good performance as the standard feed forward topology at high input signal amplitudes even with high distortion at the outputs of the integrators.
Proceedings ArticleDOI
A CMOS thermistor-embedded continuous-time delta-sigma temperature sensor with a resolution of 0.01 °C
TL;DR: A thermistor-embedded continuous-time delta-sigma modulator (CTDSM) implementing a temperature sensor (TS) is proposed in this paper and achieves high resolution sensing with reduced hardware complexity and power consumption.
Journal ArticleDOI
An Embedded 65 nm CMOS Remote Temperature Sensor With Digital Beta Correction and Series Resistance Cancellation Achieving an Inaccuracy of 0.4 $^{\circ}$ C (3 $\sigma$ ) From $-$ 40 $^{\circ}$ C to 130 $^{\circ}$ C
TL;DR: An embedded remote junction temperature sensor (RTS) with an inaccuracy of $0.4^{\circ}$ C $(3\sigma)$ for temperature range from $-$ 40$ C to 130$ C is presented, using a digital beta compensation technique, series resistance cancellation and global offset and noise coupling cancellation.
Journal ArticleDOI
Oversampling A/D Converters With Reduced Sensitivity to DAC Nonlinearities
B. Pandita,Kenneth W. Martin +1 more
TL;DR: To alleviate the image-rejection requirements of the front-end filters and the feedback digital-to-analog converter (DAC) matching requirements, an oversampling complex discrete-time DeltaSigma ADC with a signal-transfer function that achieves significant filtering of interfering signals is proposed.
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.