Sökning: onr:"swepub:oai:gup.ub.gu.se/327826" > A Mixer-First Analo...
Fältnamn | Indikatorer | Metadata |
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000 | 03344naa a2200457 4500 | |
001 | oai:DiVA.org:kth-343702 | |
003 | SwePub | |
008 | 240222s2023 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3437022 URI |
024 | 7 | a https://doi.org/10.1109/BioCAS58349.2023.103889662 DOI |
040 | a (SwePub)kth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a kon2 swepub-publicationtype |
100 | 1 | a Fernández Schrunder, Alejandro,d 1993-u KTH,Elektronik och inbyggda system4 aut0 (Swepub:kth)u1dlkvfc |
245 | 1 0 | a A Mixer-First Analog Front-End for Dry-Electrode Bioimpedance Spectroscopy |
264 | 1 | b Institute of Electrical and Electronics Engineers (IEEE),c 2023 |
338 | a electronic2 rdacarrier | |
500 | a QC 20240223Part of ISBN 979-8-3503-0026-0 | |
520 | a This paper presents a high input impedance, low-noise, and low-distortion analog front-end (AFE) for bioimpedance (bio-Z) spectroscopy measurements targeting neuromuscular health assessments. The proposed 8-phase quadrature mixer-first architecture achieves a high input impedance through passive mixers driven by non-overlapping clocks. The 8-phase signals are recombined to extract the real and imaginary parts of the bio-Z, while rejecting unwanted harmonics to improve linearity. Programmability of the AFE enables accurate bio-Z measurements up to 10 kΩ for 11 logarithmically spaced frequencies, in the 1 kHz to 1 MHz frequency range. The AFE, designed in a 0.18 μm CMOS process, consumes 245.99 μW at the lowest gain and 300.56 μW at the highest gain, and occupies 2.4 mm2 silicon area. Post-layout simulation results show that the input impedance is always higher than the electrode impedance by more than 10x. The AFE achieves a sensitivity of 7.7 mΩrms, and a maximum SNDR of 103.87 dBFS over a 61 Hz bandwidth. These results demonstrate that the proposed AFE enables bio-Z measurements, using dry electrodes, with errors below 1%. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Elektroteknik och elektronikx Annan elektroteknik och elektronik0 (SwePub)202992 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Electrical Engineering, Electronic Engineering, Information Engineeringx Other Electrical Engineering, Electronic Engineering, Information Engineering0 (SwePub)202992 hsv//eng |
653 | a analog front-end | |
653 | a bioimpedance spectroscopy | |
653 | a dry electrodes | |
653 | a high input impedance | |
653 | a low-distortion | |
653 | a low-noise | |
653 | a passive mixer | |
653 | a programmable gain | |
653 | a Electrical Engineering | |
653 | a Elektro- och systemteknik | |
653 | a Medicinsk teknologi | |
653 | a Medical Technology | |
700 | 1 | a Rusu, Ana,d 1959-u KTH,Elektronik och inbyggda system4 aut0 (Swepub:kth)u1ymok24 |
710 | 2 | a KTHb Elektronik och inbyggda system4 org |
773 | 0 | t BioCAS 2023 - 2023 IEEE Biomedical Circuits and Systems Conference, Conference Proceedingsd : Institute of Electrical and Electronics Engineers (IEEE) |
856 | 4 | u https://kth.diva-portal.org/smash/get/diva2:1839897/FULLTEXT02.pdfx primaryx Raw objecty fulltext:postprint |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-343702 |
856 | 4 8 | u https://doi.org/10.1109/BioCAS58349.2023.10388966 |
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