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11.1 A 5.37mW/Channel Pitch-Matched Ultrasound ASIC with Dynamic-Bit-Shared SAR ADC and 13.2V Charge-Recycling TX in Standard CMOS for Intracardiac Echocardiography

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dc.contributor.authorLee, Jihee-
dc.contributor.authorLee, Kyoung-Rog-
dc.contributor.authorEovino, Benjamin E.-
dc.contributor.authorPark, Jeong Hoan-
dc.contributor.authorLin, Liwei-
dc.contributor.authorYoo, Hoi-Jun-
dc.contributor.authorYoo, Jerald-
dc.date.accessioned2024-05-03T04:33:07Z-
dc.date.available2024-05-03T04:33:07Z-
dc.date.created2024-05-02-
dc.date.issued2019-
dc.identifier.citationDigest of Technical Papers - IEEE International Solid-State Circuits Conference, Vol.2019-February, pp.190-192-
dc.identifier.issn0193-6530-
dc.identifier.urihttps://hdl.handle.net/10371/200818-
dc.description.abstractIntracardiac echocardiography (ICE) is an ultrasound sonogram that visualizes the anatomical structure of the heart in real time, with a mm-scale catheter inserted through the intracardiac vessels, and guides surgical intervention for atrial septal defect (ASD) closure. To achieve high-quality medical imaging, an ICE system must meet stringent power consumption requirements with low-noise operation. Since an ASIC and ultrasound transducers are tightly bonded through flip-chip or direct integration, an ultrasound unit TRX channel must be pitch-matched to each transducer channel [1], [2]. A piezoelectric Micro-machined Ultrasound Transducer (pMUT) is a suitable ultrasound transducer for implantable sensor applications, since it does not need high (∼ 200 {V}) bias that is a must in capacitive MUTs (cMUT) [3]. However, pMUT devices suffer from process variation, which leads to low image quality, and to date, no work addresses this issue for both TX/RX in real time. To meet all these requirements at once, we present a 6 × 6 TRX pitch-matched pMUT ASIC with a standard CMOS-compatible 13.2V HV pulser, on-chip per-pixel calibration scheme, and a Dynamic Bit-Shared (DBS) ADC for portable ICE applications.-
dc.language영어-
dc.publisherInstitute of Electrical and Electronics Engineers Inc.-
dc.title11.1 A 5.37mW/Channel Pitch-Matched Ultrasound ASIC with Dynamic-Bit-Shared SAR ADC and 13.2V Charge-Recycling TX in Standard CMOS for Intracardiac Echocardiography-
dc.typeArticle-
dc.identifier.doi10.1109/ISSCC.2019.8662531-
dc.citation.journaltitleDigest of Technical Papers - IEEE International Solid-State Circuits Conference-
dc.identifier.scopusid2-s2.0-85063527768-
dc.citation.endpage192-
dc.citation.startpage190-
dc.citation.volume2019-February-
dc.description.isOpenAccessN-
dc.contributor.affiliatedAuthorYoo, Jerald-
dc.type.docTypeConference Paper-
dc.description.journalClass1-
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  • College of Engineering
  • Department of Electrical and Computer Engineering
Research Area Biomedical Applications, Energy-Efficient Integrated Circuits

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