UM  > 微電子研究院
SC biquad filter with hybrid utilization of opAmp and comparator-based circuit
Martins M.A.3; Un K.-F.2; Mak P.-I.2; Martins R.P.2
2010-08-31
Conference NameInternational Symposium on Circuits and Systems Nano-Bio Circuit Fabrics and Systems (ISCAS 2010)
Source PublicationISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
Pages1276-1279
Conference DateMAY 30-JUN 02, 2010
Conference PlaceParis, FRANCE
Abstract

This paper proposes a differential switched-capacitor (SC) biquad filter exploiting a hybrid structure. The 1 active core is an operational amplifier (OpAmp) whereas the 2 is an improved comparator-based circuit (CBC). The advantages of this new structure are justified by the reductions of power and transistor sizes. Optimized in a 65-nm CMOS process, when compared with a typical dual-OpAmp design, the proposed filter saves 19% power and 18% transistor area. The filter clocked at 40 MHz achieves 61.7-dB IM2 and 62.5-dB IM3 while drawing 2.23 mA from a 1.2-V supply. This hybrid SC biquad can gain further momentum for filters that request numerous biquads in cascade to attain higher selectivity. ©2010 IEEE.

DOIhttp://doi.org/10.1109/ISCAS.2010.5537270
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000287216001127
Fulltext Access
Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Instituto Superior Técnico
2.Universidade de Macau
3.Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
Recommended Citation
GB/T 7714
Martins M.A.,Un K.-F.,Mak P.-I.,et al. SC biquad filter with hybrid utilization of opAmp and comparator-based circuit[C],2010:1276-1279.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Martins M.A.]'s Articles
[Un K.-F.]'s Articles
[Mak P.-I.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Martins M.A.]'s Articles
[Un K.-F.]'s Articles
[Mak P.-I.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Martins M.A.]'s Articles
[Un K.-F.]'s Articles
[Mak P.-I.]'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.