微电子学2024,Vol.54Issue(4) :625-631.DOI:10.13911/j.cnki.1004-3365.230406

一种多通道模数转换器的误差校正方法

Error Correction Method for Multichannel Analog-to-Digital Converters

邓民明 王旭 刘涛
微电子学2024,Vol.54Issue(4) :625-631.DOI:10.13911/j.cnki.1004-3365.230406

一种多通道模数转换器的误差校正方法

Error Correction Method for Multichannel Analog-to-Digital Converters

邓民明 1王旭 1刘涛1
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作者信息

  • 1. 中国电子科技集团公司第二十四研究所,重庆 400060
  • 折叠

摘要

介绍了一种模拟数字结合的时分交织模数转换器的校正方法,包括模拟时钟调整电路、频域误差检测电路以及数字误差校正方案等,针对传统时分交织校正算法校正方案复杂、扩展难等缺点,结合模拟电路的粗校正和数字校正方案的细校正,创新性地提出一种综合校正机制,能够有效地完成检测误差分配,实现粗校正和细校正的有效配合,并跟踪误差随频率和温度变化的波动,完成多通道模数转换器的通道误差校正,具有设计结构简单、易于扩展和稳定的特点.

Abstract

In this study,a time-interleaved analog-to-digital converter correction method that combines the analog and digital correction methods is introduced.This approach incorporates an analog clock adjustment circuit,a frequency domain error detection circuit,and a digital error correction method.Considering the complexity and shortcomings of the traditional time-interleaved correction methods,we propose an innovative correction method that combines the coarse correction of the analog circuit and fine correction of the digital correction method.Using the advantages of a simple structure,that is,stableness and robustness,the proposed method effectively distributes detected errors,achieves the precise matching of coarse and fine corrections,tracks error fluctuations with changes in frequency and temperature,and corrects channel errors induced by multi-channel analog-to-digital converters.

关键词

时分交织/模数转换器/模拟数字结合

Key words

time-interleaved/analog-to-digital converter/combination of analog and digital correction methods

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出版年

2024
微电子学
四川固体电路研究所

微电子学

CSTPCD北大核心
影响因子:0.274
ISSN:1004-3365
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