时间交错adc的时序倾斜校准技术

IF 3.2
Mingyang Gu;Yunsong Tao;Yi Zhong;Lu Jie;Nan Sun
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引用次数: 0

摘要

时间交错(TI)模数转换器(adc)是一种广泛应用于高速adc的结构。随着人们对高采样率的要求越来越高,时间交织技术发挥着越来越重要的作用。然而,时间交错带来的缺陷,特别是时序倾斜,严重限制了ADC的性能。本文对TI adc中的时序偏差及其校准技术进行了全面的综述。它涵盖了时间交错的基本原理,时间倾斜的原理,以及时间倾斜校准的一般考虑。将现有的标定技术分为三类:1)基于自相关的标定技术;2) reference-channel-based;3)参考信号为基础,并提供了详细的分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Timing-Skew Calibration Techniques in Time-Interleaved ADCs
Time-interleaved (TI) analog-to-digital converters (ADCs) are a widely used architecture in high-speed ADCs. With the growing demand for higher sampling rates, time interleaving plays an increasingly important role. However, imperfections introduced by time interleaving, particularly timing skew, significantly limit the ADC performance. This article presents a comprehensive review of timing skew and its calibration techniques in TI ADCs. It covers the fundamentals of time interleaving, the principle of timing skew, and general considerations of timing-skew calibration. Moreover, it categorizes existing calibration techniques into three types: 1) autocorrelation-based; 2) reference-channel-based; and 3) reference-signal-based, and provides detailed analyses.
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