UM  > INSTITUTE OF MICROELECTRONICS
Systematic analysis and cancellation of kickback noise in a dynamic latched comparator
Ka-Meng Lei1; Pui-In Mak1; Rui P. Martins1,2
2013-09-19
Source PublicationAnalog Integrated Circuits and Signal Processing
ISSN0925-1030
Volume77Issue:2Pages:277-284
Abstract

A dynamic latched comparator can suffer from three non-idealities: offset voltage, random noise and kickback noise. Specifically in an analog-to-digital converter (ADC) the kickback noise of a comparator can noticeably affect the settling time and accuracy of the decision. This work offers an analytical treatment of kickback noise generation, and proposes a synchronized kickback noise cancellation technique, which is achieved via placing clocked NMOS-PMOS capacitors at the proper nodes to cancel out effectively those unwanted charges (electrons or holes) under different operating regions of the MOS devices. The technique is clock-rate insensitive and particularly suitable for the SAR-type ADC as it will not alter the charge stored in the capacitor array. Optimized in 65-nm CMOS the kickback noise is <±0.3 mV in 30× Monte-Carlo simulations at both 50- and 500-MHz clock rates. For 10-bit resolution in a full scale of 1 V, the kickback noise of the proposed comparator comparing with the conventional one is improved by 48×, from 6.27 to 0.13 LSB. © 2013 Springer Science+Business Media New York.

KeywordAnalog-to-digital Converter (Adc) Cmos Dynamic Latched Comparator Kickback Noise
DOIhttp://doi.org/10.1007/s10470-013-0156-1
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Hardware & Architecture ; Engineering, Electrical & Electronic
WOS IDWOS:000326453400018
Fulltext Access
Citation statistics
Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.State-Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE, University of Macau, Macao, China
2.Instituto Superior Te´cnico, U of Lisbon, Lisbon, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Ka-Meng Lei,Pui-In Mak,Rui P. Martins. Systematic analysis and cancellation of kickback noise in a dynamic latched comparator[J]. Analog Integrated Circuits and Signal Processing,2013,77(2):277-284.
APA Ka-Meng Lei,Pui-In Mak,&Rui P. Martins.(2013).Systematic analysis and cancellation of kickback noise in a dynamic latched comparator.Analog Integrated Circuits and Signal Processing,77(2),277-284.
MLA Ka-Meng Lei,et al."Systematic analysis and cancellation of kickback noise in a dynamic latched comparator".Analog Integrated Circuits and Signal Processing 77.2(2013):277-284.
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
[Ka-Meng Lei]'s Articles
[Pui-In Mak]'s Articles
[Rui P. Martins]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ka-Meng Lei]'s Articles
[Pui-In Mak]'s Articles
[Rui P. Martins]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ka-Meng Lei]'s Articles
[Pui-In Mak]'s Articles
[Rui P. Martins]'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.