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On Continuous-Time Incremental Sigma Delta ADCs With Extended Range
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- Garcia, Julian (author)
- KTH,Integrerade komponenter och kretsar
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- Rodriguez, Saul (author)
- KTH,Integrerade komponenter och kretsar
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- Rusu, Ana (author)
- KTH,Integrerade komponenter och kretsar
- (creator_code:org_t)
- 2013
- 2013
- English.
- In: IEEE Transactions on Instrumentation and Measurement. - 0018-9456 .- 1557-9662. ; 62:1, s. 60-70
- Journal article (peer-reviewed)
Abstract
Subject headings
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- In this paper, the use of continuous-time implementation in extended-range (ER) incremental sigma-delta analog-to-digital converters is analyzed in order to explore a possible solution to low-power multichannel applications. The operation principle, possible loop filter topologies, and critical issues are considered using a general approach. It is demonstrated that, in order to fully benefit from ER, careful attention has to be paid to the analog-digital transfer function mismatches. A third-order single-bit topology validates the theoretical analysis. Its performance is evaluated while the impact of key circuit nonidealities is quantified through behavioral-level simulations. It is shown that, by applying analog-digital mismatch compensation in the digital domain, it is possible to relax the amplifiers' finite gain-bandwidth product and finite dc gain requirements, thus allowing a power-conscious alternative.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- analog-to-digital conversion
- Continuous-time
- incremental sigma-delta
- extended range
- SRA - ICT
- SRA - Informations- och kommunikationsteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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