A threshold-embedded offset calibration technique for inverter-based flash ADCs
Chan C.-H.; Zhu Y.; Chio U.-F.; Sin S.-W.; U S.-P.; Martins R.P.
2010-09-20
Conference Name53rd Midwest Symposium on Circuits and Systems (MWSCAS 2010)
Source PublicationMidwest Symposium on Circuits and Systems
Pages489-492
Conference DateAUG 01-04, 2010
Conference PlaceSeattle, WA
Abstract

A threshold-embedded offset calibration technique for inverter-based Analog to Digital Converter (ADC) is presented. Different from the conventional approach, this work uses a ratio-scaled digital CMOS inverter to define the comparison thresholds, and an extra voltage-controlled resistor is adopted to calibrate the threshold error caused by random mismatch variations. Moreover, a folding flash architecture is employed to reduce the number of inverters by half, which optimizes calibration effort and conversion power. The proposed threshold calibration technique is verified in a 5-bit 800MS/s flash ADC in 65-nm CMOS technology. After the calibration, the post layout simulations (PLS) show that the Effective Number of Bits (ENOB) can be significantly improved from 3.8 bits to 4.7 bits with the total power dissipation of 1mW and achieving a competitive Figure of Merit (FoM) of 48fJ/conv. The area of the whole ADC is 0.04mm only which included calibration circuits. © 2010 IEEE.

DOI10.1109/MWSCAS.2010.5548736
URLView the original
Indexed BySCIE
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic
WOS IDWOS:000287099800122
Fulltext Access
Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Faculty of Science and Technology
INSTITUTE OF MICROELECTRONICS
AffiliationUniversidade de Macau
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Chan C.-H.,Zhu Y.,Chio U.-F.,et al. A threshold-embedded offset calibration technique for inverter-based flash ADCs[C],2010:489-492.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chan C.-H.]'s Articles
[Zhu Y.]'s Articles
[Chio U.-F.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chan C.-H.]'s Articles
[Zhu Y.]'s Articles
[Chio U.-F.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chan C.-H.]'s Articles
[Zhu Y.]'s Articles
[Chio U.-F.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.