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Journal ArticleDOI

An overview of sigma-delta converters

Pervez M. Aziz, +2 more
- 01 Jan 1996 - 
- Vol. 13, Iss: 1, pp 61-84
TLDR
This article describes conventional A/D conversion, as well as its performance modeling, and examines the use of sigma-delta converters to convert narrowband bandpass signals with high resolution.
Abstract
Using sigma-delta A/D methods, high resolution can be obtained for only low to medium signal bandwidths. This article describes conventional A/D conversion, as well as its performance modeling. We then look at the technique of oversampling, which can be used to improve the resolution of classical A/D methods. We discuss how sigma-delta converters use the technique of noise shaping in addition to oversampling to allow high resolution conversion of relatively low bandwidth signals. We examine the use of sigma-delta converters to convert narrowband bandpass signals with high resolution. Several parallel sigma-delta converters, which offer the potential of extending high resolution conversion to signals with higher bandwidths, are also described.

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Citations
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A wavelet tour of signal processing

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Proceedings ArticleDOI

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Journal ArticleDOI

Robust 1-Bit Compressive Sensing via Binary Stable Embeddings of Sparse Vectors

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Robust 1-Bit Compressive Sensing via Binary Stable Embeddings of Sparse Vectors

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Patent

Analog to digital converters

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References
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Book

Discrete-Time Signal Processing

TL;DR: In this paper, the authors provide a thorough treatment of the fundamental theorems and properties of discrete-time linear systems, filtering, sampling, and discrete time Fourier analysis.
Journal ArticleDOI

Spectra of quantized signals

TL;DR: Quantizing of time, or time division, has found application as a means of multiplexing telephone channels and the more familiar word “sampling” will be used here interchangeably with the rather formidable term “quantization of time”.
Journal ArticleDOI

Time interleaved converter arrays

TL;DR: In this article, a number of small but area efficient converters are operated in a time-interleaved fashion to achieve the bandwidth of a flash circuit, but in a substantially smaller area.
Journal ArticleDOI

The design of sigma-delta modulation analog-to-digital converters

TL;DR: The author examines the practical design criteria for implementing oversampled analog/digital converters based on second-order sigma-delta ( Sigma Delta ) modulation and applies these criteria to the design of a modulator that has been integrated in a 3- mu m CMOS technology.
Journal ArticleDOI

A Use of Double Integration in Sigma Delta Modulation

TL;DR: A modulator that employs double integration and two-level quantization is easy to implement and is tolerant of parameter variation.