Title
A low-offset calibration-free comparator with a mismatch-suppressed dynamic preamplifier
Abstract
This paper presents a new low offset comparator with a mismatch-suppressed dynamic preamplifier Various mismatches contribute to comparators's input referred offset. The proposed mismatch suppression is achieved by sampling the mismatches at the dynamic preamplifier's output node during the precharge phase. A time-domain analysis method is utilized to quantize the suppression effects. By the techniques, a 1-GS/s four-input comparator is implemented by 65-nm CMOS technology. It achieves a 60-μW power dissipation and a 1.89-mV 1-sigma(σ) offset voltage, which is a 90% improvement compared to its non-suppressed counterparts.
Year
DOI
Venue
2014
10.1109/ISCAS.2014.6865646
ISCAS
Keywords
DocType
ISSN
cmos analogue integrated circuits,calibration,time-domain analysis method,power dissipation,size 65 nm,preamplifiers,quantisation (signal),voltage 1.89 mv,suppression effect quantization,cmos technology,offset voltage,mismatch sampling,time-domain analysis,mismatch-suppressed dynamic preamplifier,precharge phase,comparators (circuits),power 60 muw,input referred offset,low-offset calibration-free comparator,threshold voltage,cmos integrated circuits,capacitors
Conference
0271-4302
Citations 
PageRank 
References 
2
0.51
1
Authors
7
Name
Order
Citations
PageRank
Chixiao Chen164.36
Zemin Feng222.20
Huabin Chen3489.11
Mingshuo Wang4133.24
Jun Xu551.17
Fan Ye66321.55
Junyan Ren715441.40