ESTIMATION AND CORRECTION OF GAIN MISMATCH AND TIMING ERROR IN TIME-INTERLEAVED ADCs BASED ON DFT

被引：14

作者：

Guo, Lianping ^{[1
]}

Tian, Shulin ^{[1
]}

Wang, Zhigang ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 610054, Peoples R China

来源：

METROLOGY AND MEASUREMENT SYSTEMS | 2014年 / 21卷 / 03期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

correction; estimation; gain mismatch; time-interleaved analog-to-digital converter; timing error; BACKGROUND CALIBRATION TECHNIQUE;

D O I：

10.2478/mms-2014-0045

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Time-interleaved analog-to-digital converter (ADC) architecture is crucial to increase the maximum sample rate. However, offset mismatch, gain mismatch, and timing error between time-interleaved channels degrade the performance of time-interleaved ADCs. This paper focuses on the gain mismatch and timing error. Techniques based on Discrete Fourier Transform (DFT) for estimating and correcting gain mismatch and timing error in an M-channel ADC are depicted. Numerical simulations are used to verify the proposed estimation and correction algorithm.

引用

页码：535 / 544

页数：10

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