Title
Time-to-digital converter with 3-ps resolution and digital linearization algorithm
Abstract
This paper presents a digital scrambling technique to improve the linearity of flash time-to-digital converters (TDCs) with sub-gate-delay time resolution. Thanks to this approach, a flash TDC using N time arbiters behaves as a quasi-stochastic TDC with an equivalent number of samples equal to N2, at the negligible area cost of doubling the number of minimum load capacitors. The concept is proved in a 65-nm CMOS technology 40MHz TDC, which achieves a 3ps resolution. The differential nonlinearity is reduced from 1LSB to less than 0.2LSB.
Year
DOI
Venue
2010
10.1109/ESSCIRC.2010.5619879
Seville
Keywords
DocType
ISSN
cmos integrated circuits,asynchronous circuits,capacitors,convertors,cmos technology,digital linearization algorithm,digital scrambling technique,sub-gate-delay time resolution,time arbiters,time-to-digital converter,dynamic range,time to digital converter,linearity,adders,phase locked loops
Conference
1930-8833
ISBN
Citations 
PageRank 
978-1-4244-6662-7
9
1.09
References 
Authors
3
5
Name
Order
Citations
PageRank
Marco Zanuso115214.89
Salvatore Levantino235143.23
alberto puggelli391.09
Carlo Samori434939.76
Andrea L. Lacaita532042.41