Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 임재명 | - |
dc.date.accessioned | 2022-03-15T00:23:29Z | - |
dc.date.available | 2022-03-15T00:23:29Z | - |
dc.date.issued | 2020-01 | - |
dc.identifier.citation | IEEE JOURNAL OF SOLID-STATE CIRCUITS, v. 55, no. 5, page. 1310-1323 | en_US |
dc.identifier.issn | 0018-9200 | - |
dc.identifier.issn | 1558-173X | - |
dc.identifier.uri | https://ieeexplore.ieee.org/document/8976311 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/169074 | - |
dc.description.abstract | In this article, we present a highly integrated guidewire ultrasound (US) imaging system-on-a-chip (GUISoC) for vascular imaging. The SoC consists of a 16-channel US transmitter (Tx) and receiver (Rx) electronics, on-chip power management IC (PMIC), and quadrature sampler. Using a synthetic aperture imaging algorithm, a Tx/Rx pair, connected to capacitive micromachined ultrasound transducers (CMUTs), can be activated at any time. The Tx generates acoustic waves by driving the CMUT, while the Rx picks up the echo signal and amplify it to be delivered through an interconnect that is driven by a buffer. On-chip logic controls the pulsers that generate the high-voltage (HV)-pulse for Tx. An on-chip PMIC provides 1.8-, 5-, 39-, and 44-V supplies and a clock signal from the two interconnects besides GND. A quadrature sampler down-converts the Rx echo signal to baseband, reducing its bandwidth requirement for the output interconnect. The system design, including transimpedance amplifier (TIA) optimization, based on the equivalent circuit of a specific CMUT is presented. The SoC was fabricated by a 0.18- $\mu \text{m}$ HV CMOS process, occupying 1.5-mm(2) active area and consuming 25.2 and 44 mW from 1.8 to 44 V supplies, respectively. The US Tx and Rx show bandwidths of 32-42 and 32.7-37.5 MHz, respectively. The input-referred noise of the system was measured as 9.66 nA in band with 2-m-long 52 American Wire Gauge (AWG) wire interconnects. The functionality of the GUISoC was verified in vitro by imaging wire targets. | en_US |
dc.description.sponsorship | This work was supported in part by the National Institute of Biomedical Imaging and Bioengineering (NIBIB) under Award R21 EB017365-02 and in part by the National Institute of Neurological Disorders and Stroke under Award R21NS108391. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | en_US |
dc.subject | Capacitive micromachined ultrasound transducer (CMUT) | en_US |
dc.subject | intravascular ultrasound (IVUS) | en_US |
dc.subject | quadrature sampling | en_US |
dc.subject | ultrasound (US) imaging | en_US |
dc.title | Highly Integrated Guidewire Ultrasound Imaging System-on-a-Chip | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/JSSC.2020.2967551 | - |
dc.relation.journal | IEEE JOURNAL OF SOLID-STATE CIRCUITS | - |
dc.contributor.googleauthor | Lim, Jaemyung | - |
dc.contributor.googleauthor | Tekes, Coskun | - |
dc.contributor.googleauthor | Arkan, Evren F. | - |
dc.contributor.googleauthor | Rezvanitabar, Ahmad | - |
dc.contributor.googleauthor | Degertekin, F. Levent | - |
dc.contributor.googleauthor | Ghovanloo, Maysam | - |
dc.relation.code | 2020052598 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | SCHOOL OF ELECTRONIC ENGINEERING | - |
dc.identifier.pid | limjm | - |
dc.identifier.orcid | https://orcid.org/0000-0002-1073-1304 | - |
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