Print Email Facebook Twitter A Pitch-Matched Front-End ASIC With Integrated Subarray Beamforming ADC for Miniature 3-D Ultrasound Probes Title A Pitch-Matched Front-End ASIC With Integrated Subarray Beamforming ADC for Miniature 3-D Ultrasound Probes Author Chen, C. (TU Delft Electronic Instrumentation; Butterfly Network Inc.) Chen, Z. (TU Delft Electronic Instrumentation) Bera, Deep (Erasmus MC; Philips India Limited) Noothout, E.C. (TU Delft ImPhys/Acoustical Wavefield Imaging) Chang, Z.Y. (TU Delft Electronic Instrumentation) Tan, M. (TU Delft Electronic Instrumentation) Vos, H.J. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC) Bosch, Johan G. (Erasmus MC) Verweij, M.D. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC) de Jong, N. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC) Pertijs, M.A.P. (TU Delft Electronic Instrumentation) Date 2018 Abstract This paper presents a front-end application-specified integrated circuit (ASIC) integrated with a 2-D PZT matrix transducer that enables in-probe digitization with acceptable power dissipation for the next-generation endoscopic and catheter-based 3-D ultrasound imaging systems. To achieve power-efficient massively parallel analog-to-digital conversion (ADC) in a 2-D array, a 10-bit 30 MS/s beamforming ADC that merges the subarray beamforming and digitization functions in the charge domain is proposed. It eliminates the need for costly intermediate buffers, thus significantly reducing both power consumption and silicon area. Self-calibrated charge references are implemented in each subarray to further optimize the system-level power efficiency. High-speed datalinks are employed in combination with the subarray beamforming scheme to realize a 36-fold channel-count reduction and an aggregate output data rate of 6 Gb/s for a prototype receive array of 24 x 6 elements. The ASIC achieves a record power efficiency of 0.91 mW/element during receive. Its functionality has been demonstrated in both electrical and acoustic imaging experiments. Subject 3-D ultrasound imagingcharge-sharing successive approximation register (SAR) analog-to-digital conversion (ADC)in-probe digitizationminiature probessubarray beamformingultrasound front-end application-specified integrated circuit (ASIC). To reference this document use: http://resolver.tudelft.nl/uuid:bbbe1759-c11a-45a9-bbee-bf5c358ea278 DOI https://doi.org/10.1109/JSSC.2018.2864295 ISSN 0018-9200 Source IEEE Journal of Solid State Circuits, 53 (11), 3050-3064 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2018 C. Chen, Z. Chen, Deep Bera, E.C. Noothout, Z.Y. Chang, M. Tan, H.J. Vos, Johan G. Bosch, M.D. Verweij, N. de Jong, M.A.P. Pertijs Files PDF 08454886.pdf 5.41 MB Close viewer /islandora/object/uuid:bbbe1759-c11a-45a9-bbee-bf5c358ea278/datastream/OBJ/view