A 1.2mW/channel 100m-Pitch-Matched Transceiver ASIC with Boxcar-Integration-Based RX Micro-Beamformer for High-Resolution 3D Ultrasound Imaging

Conference paper (2022)

Authors

P. Guo Electronic Instrumentation - EEMCS
F. Fool ImPhys/Medical Imaging - AS
E.C. Noothout ImPhys/Medical Imaging - AS
Z.Y. Chang Electronic Instrumentation - EEMCS
H.J. Vos ImPhys/Medical Imaging - AS , Erasmus MC
Johan G. Bosch Erasmus MC
M.D. Verweij ImPhys/Medical Imaging - AS , Erasmus MC
N. de Jong ImPhys/Medical Imaging - AS , Erasmus MC
M.A.P. Pertijs Electronic Instrumentation - EEMCS
Research Group
Electronic Instrumentation (EEMCS) (TU Delft)
Copyright: © 2022 P. Guo, F. Fool, E.C. Noothout, Z.Y. Chang, H.J. Vos, Johan G. Bosch, M.D. Verweij, N. de Jong, M.A.P. Pertijs
DOI
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https://doi.org/10.1109/ISSCC42614.2022.9731784
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Published Date

2022

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Instrumentation

Abstract

The integration of 2D ultrasonic transducer arrays and pitch-matched ASICs has enabled the realization of various 3D ultrasound imaging devices in recent years [1]-[3]. As applications such as 3D intravascular ultrasonography, intra-cardiac echocardiography, and trans-fontanelle ultrasonography call for miniaturization and improved spatial resolution, higher-frequency transducers (>5MHz) with a correspondingly smaller array pitch (<150m) are needed. Such devices generally employ a large number of transducer elements, calling for channel-count reduction in the ASIC while meeting stringent restrictions on per-element power consumption and die area. Micro-beamforming (BF) is an effective way of reducing channel count by performing a delay-and-sum operation on the echo signals received within a sub-array [1]. However, prior BF implementations employ per-element capacitive memory to realize the delay [1], [2], making it increasingly difficult to apply BF in smaller-pitch arrays.