A 1-V 99-to-75dB SNDR, 256Hz-16kHz, bandwidht 8.6-to-39μW reconfigurable DT Σ Δ modulator for autonomous biomedical applications

S. Porrazzo, V.N. Manyam, A. Morgado, D. San Segundo Bello, C. Van Hoof, Arthur Roermund, van, R.F. Yazicioglu, Eugenio Cantatore

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

8 Citaten (Scopus)
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Samenvatting

The paper presents a reconfigurable Delta-Sigma Modulator (¿SM) suitable for three operation modes, whose application ranges from bio-potential signal monitoring to hearing aids. A feed-forward 2nd-order SC ¿SM architecture with 4-bit quantizer is selected according to an analytic power optimization procedure. The ¿SM features programmable sampling capacitors in the first integrator and novel reconfigurable power-gated OTAs to adjust power consumption in each operation mode. An asynchronous embedded SAR converter implements low-power quantization and passive addition in the feed-forward topology. The prototype is implemented in a 0.18µm CMOS technology and operates from a supply voltage of 1V. Measurements show peak SNDRs from 99 to 75dB for signal bandwidths spanning from 256Hz to 16kHz, achieving figures of merit which are almost constant in the different modes, and range from 0.20 to 0.27pJ/c.s.
Originele taal-2Engels
Titelproceedings of the ESSCIRC 39th European Solid-State Circuits Conference, sept. 16-20, 2013, Bucharest Romania
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's367-370
ISBN van geprinte versie978-1-4799-0645-1
DOI's
StatusGepubliceerd - 2013
Evenement39th European Solid-State Circuits Conference (ESSCIRC 2013) - JW Marriott Bucharest Grand Hotel, Bucharest, Roemenië
Duur: 16 sep. 201320 sep. 2013
Congresnummer: 39

Congres

Congres39th European Solid-State Circuits Conference (ESSCIRC 2013)
Verkorte titelESSCIRC 2013
Land/RegioRoemenië
StadBucharest
Periode16/09/1320/09/13
AnderESSCIRC 39th European Solid-State Circuits Conference, sept. 16-20, 2013, Bucharest Romania

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