Print Email Facebook Twitter A 1.2-mW/Channel Pitch-Matched Transceiver ASIC Employing a Boxcar-Integration-Based RX Micro-Beamformer for High-Resolution 3-D Ultrasound Imaging Title A 1.2-mW/Channel Pitch-Matched Transceiver ASIC Employing a Boxcar-Integration-Based RX Micro-Beamformer for High-Resolution 3-D Ultrasound Imaging Author Guo, P. (TU Delft Bio-Electronics; TU Delft Electronic Instrumentation) Fool, F. (TU Delft ImPhys/Verweij group) Chang, Z.Y. (TU Delft Electronic Instrumentation) Noothout, E.C. (TU Delft ImPhys/Verweij group) Vos, H.J. (TU Delft ImPhys/Verweij group; Erasmus MC) Bosch, Johan G. (Erasmus MC) de Jong, N. (TU Delft ImPhys/De Jong group; Erasmus MC) Verweij, M.D. (TU Delft ImPhys/Medical Imaging; TU Delft ImPhys/Verweij group; Erasmus MC) Pertijs, M.A.P. (TU Delft Electronic Instrumentation) Date 2023 Abstract This article presents a low-power and small-area transceiver application-specific integrated circuit (ASIC) for 3-D trans-fontanelle ultrasonography. A novel micro-beamforming receiver architecture that employs current-mode summation and boxcar integration is used to realize delay-and-sum on an N -element sub-array using N× fewer capacitive memory elements than conventional micro-beamforming implementations, thus reducing the hardware overhead associated with the memory elements. The boxcar integration also obviates the need for explicit anti-aliasing filtering in the analog front end, thus further reducing die area. These features facilitate the use of micro-beamforming in smaller pitch applications, as demonstrated by a prototype transceiver ASIC employing micro-beamforming on sub-arrays of N=4 elements, targeting a wearable ultrasound device that monitors brain perfusion in preterm infants via the fontanel. To meet its strict spatial resolution requirements, a 10-MHz 100- μ m-pitch piezoelectric transducer array is employed, leading to a per-element die area > 2 × smaller than prior designs employing micro-beamforming. Subject Application-specific integrated circuit (ASIC)micro-beamformer (<inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX">$\mu$</tex-math> </inline-formula>BF)pitch-matched analog front end (AFE)sub-array beamforming To reference this document use: http://resolver.tudelft.nl/uuid:05e71f13-16fd-4458-8584-b9369540f39e DOI https://doi.org/10.1109/JSSC.2023.3271270 Embargo date 2023-11-27 ISSN 0018-9200 Source IEEE Journal of Solid State Circuits, 58 (9), 2607-2618 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2023 P. Guo, F. Fool, Z.Y. Chang, E.C. Noothout, H.J. Vos, Johan G. Bosch, N. de Jong, M.D. Verweij, M.A.P. Pertijs Files PDF A_1.2_mW_Channel_Pitch_Ma ... maging.pdf 2.74 MB Close viewer /islandora/object/uuid:05e71f13-16fd-4458-8584-b9369540f39e/datastream/OBJ/view