A Combined Digital Foreground Self-calibration Algorithm for Pipelined Analog-to-Digital Converter

Hongliang Xia, Xusheng Tang, Lu Tang, Yufeng Guo, Hao Gao, Yi Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

In this paper, a combined digital foreground self-calibration algorithm is designed to calibrate the gain error and capacitor mismatch error in pipelined analog-to-digital converter (ADC). For the gain error, it is detected by digital circuit and calibrated by modifying the feedback capacitance in operational amplifier. Similarly, the capacitor mismatch error is also detected by digital circuit and calibrated by a specific formula. Finally, the calibration of pipelined ADC is accomplished by combining the two error calibration algorithm. For a 14-bit pipelined ADC with gain error and capacitor mismatch error, its performance is ENOB=8.62bit and SFDR=60.8dB.With the help of the algorithm presented in this paper, its performance can be improved to ENOB=13.37bit and SFDR=88.7dB.
Original languageEnglish
Title of host publication2021 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2021 - Proceedings
Subtitle of host publicationProceedings
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)978-1-6654-3437-9
DOIs
Publication statusPublished - 1 Dec 2021
EventInternational Conference on Microwave and Millimeter Wave Technology (ICMMT2021) - Nanjing, China
Duration: 23 May 202126 May 2021
http://www.em-conf.com/icmmt2021/

Conference

ConferenceInternational Conference on Microwave and Millimeter Wave Technology (ICMMT2021)
Country/TerritoryChina
CityNanjing
Period23/05/2126/05/21
Internet address

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