DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeong, Kyeongwon | ko |
dc.contributor.author | Yun, Gichan | ko |
dc.contributor.author | Choi, Jaesuk | ko |
dc.contributor.author | Choi, Injun | ko |
dc.contributor.author | Son, Jeehoon | ko |
dc.contributor.author | Hwang, Jae Youn | ko |
dc.contributor.author | Ha, Sohmyung | ko |
dc.contributor.author | Je, Minkyu | ko |
dc.date.accessioned | 2023-10-29T09:02:16Z | - |
dc.date.available | 2023-10-29T09:02:16Z | - |
dc.date.created | 2023-07-03 | - |
dc.date.issued | 2023-10 | - |
dc.identifier.citation | IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.58, no.10, pp.2778 - 2789 | - |
dc.identifier.issn | 0018-9200 | - |
dc.identifier.uri | http://hdl.handle.net/10203/313849 | - |
dc.description.abstract | This article presents an ultrasound (US) transceiver IC including a highly power-efficient US receiver (RX) and a high-voltage (HV) US transmitter (TX) for US capsule endoscopy (USCE) systems for the first time. The proposed USCE system employs the developed IC, a single-element piezoelectric transducer (PZT), and a mechanically rotating reflector to obtain 360 $<^>{\circ}$ transmural scans while traveling through the gastrointestinal (GI) tract. Since the USCE system operates with a tiny battery, power efficiency is greatly important. To reduce power consumption by decreasing the required operating speed of the analog-to-digital converter (ADC), we propose a new RX structure employing synchronized analog envelope detection. It is unlike conventional US RX ICs that necessitate power-hungry high-speed ADCs to acquire the US signal residing at a high center frequency with wide bandwidth. Instead, the proposed work employs an analog envelope detector based on a quadrature demodulation method. As a result, it uses only a single circuit path rather than two (I and Q) paths by using a demodulation carrier whose phase is synchronized with the incoming US signal. A ping-pong noise-shaping (NS) SAR ADC is adopted to improve resolution while maintaining low power consumption. Besides, the TX IC, including an on-chip charge pump, is designed to generate HV pulses to drive the PZT. The prototype IC is fabricated in a 0.18 $\mu$ m bipolar-CMOS-DMOS (BCD) process. The RX consumes 2.3 mW, and the ADC achieves a 53.71 dB SNDR and a 66.45 dB SFDR. The TX generates 25 V pulses with 25 ns pulsewidth. US B-mode images of a water tank and a custom phantom are successfully obtained by using the prototype capsule endoscopy system employing the fabricated IC chip. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | A Wide-Bandwidth Ultrasound Receiver and On-Chip Ultrasound Transmitter for Ultrasound Capsule Endoscopy | - |
dc.type | Article | - |
dc.identifier.wosid | 001008042600001 | - |
dc.identifier.scopusid | 2-s2.0-85161001093 | - |
dc.type.rims | ART | - |
dc.citation.volume | 58 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 2778 | - |
dc.citation.endingpage | 2789 | - |
dc.citation.publicationname | IEEE JOURNAL OF SOLID-STATE CIRCUITS | - |
dc.identifier.doi | 10.1109/JSSC.2023.3276130 | - |
dc.contributor.localauthor | Je, Minkyu | - |
dc.contributor.nonIdAuthor | Son, Jeehoon | - |
dc.contributor.nonIdAuthor | Hwang, Jae Youn | - |
dc.contributor.nonIdAuthor | Ha, Sohmyung | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Integrated circuits | - |
dc.subject.keywordAuthor | Transducers | - |
dc.subject.keywordAuthor | Bandwidth | - |
dc.subject.keywordAuthor | Imaging | - |
dc.subject.keywordAuthor | Ultrasonic imaging | - |
dc.subject.keywordAuthor | Endoscopes | - |
dc.subject.keywordAuthor | Demodulation | - |
dc.subject.keywordAuthor | Analog front-end | - |
dc.subject.keywordAuthor | piezoelectric transducer (PZT) | - |
dc.subject.keywordAuthor | Index Terms | - |
dc.subject.keywordAuthor | synchronized analog envelop detector | - |
dc.subject.keywordAuthor | ultrasound (US) capsule endoscopy | - |
dc.subject.keywordAuthor | US receiver (RX) | - |
dc.subject.keywordAuthor | US transmitter (TX) | - |
dc.subject.keywordPlus | FRONT-END | - |
dc.subject.keywordPlus | ESOPHAGEAL CANCER | - |
dc.subject.keywordPlus | RESOLUTION | - |
dc.subject.keywordPlus | CMUT | - |
dc.subject.keywordPlus | BEAMFORMER | - |
dc.subject.keywordPlus | ACCURACY | - |
dc.subject.keywordPlus | CIRCUIT | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | DEVICE | - |
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