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심장박동기용 시그마 델타 A/D 변환기에서의 저전력 데시메이션 필터 구조

Other Titles
 Low-power Decimation Filter Structure for Sigma Delta A/D Converters in Cardiac Applications 
Authors
 장영범  ;  양세정  ;  유선국 
Citation
 Transactions of the Korean Institute of Electrical Engineers (전기학회논문지), Vol.53D(2) : 111-117, 2004 
Journal Title
Transactions of the Korean Institute of Electrical Engineers(전기학회논문지)
ISSN
 1975-8359 
Issue Date
2004
Keywords
시그마 델타 A/D 변환기 ; 데시메이션 필터 ; 심장박동기 ; CSD ; Common Sub-expression Sharing
Abstract
The low-power design of the A/D converter is indispensable to achieve the compact bio-signal measuring device with long battery duration. In this paper, new decimation filter structure is proposed for the low-power design of the Sigma-Delta A/D converter in the bio-instruments. The proposed filter is based on the non-recursive structure of the CIC (Cascaded Integrator Comb) decimation filter in the Sigma-Delta A/D converter. By combining the CSD (Canonic Signed Digit) structure with common sub-expression sharing technique, the proposed decimation filter structure can significantly reduce the number of adders for implementation. For the fixed decimation factor of 16, the 15% of power consumption saving is achieved in the proposed structure in comparison with that of the conventional polyphase CIC filter.
Files in This Item:
T200400350.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Sun Kook(유선국) ORCID logo https://orcid.org/0000-0002-6032-4686
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/112098
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