A front-end ASIC with high-voltage transmit switching and receive digitization for forward-looking intravascular ultrasound

Mingliang Tan*, Chao Chen, Zhao Chen, Jovana Janjic, Verya Daeichin, Zu Yao Chang, Emile Noothout, Gijs Van Soest, Martin Verweij, Nico De Jong, Michiel Pertijs

*Corresponding author for this work

Research output: Chapter/Conference proceedingConference proceedingAcademicpeer-review

7 Citations (Scopus)

Abstract

This paper presents a front-end ASIC for forward-looking intravascular ultrasound (IVUS) imaging. The ASIC is intended to be mounted at the tip of a catheter and can interface a total of 80 piezo-electric transducer elements with an imaging systems using only 4 cables, thus significantly reducing the system complexity compared to the prior art. It is capable of switching high-voltage transmit pulses to 16 transmit elements, and capturing the resulting echo signals using 64 multiplexed receive elements. The ASIC digitizes the received signals locally, providing more robust communication than prior analog approaches. Measurements show that the ASIC effectively switches transmit pulses up to 30 V, and digitizes echo signals with a bandwidth of 16 MHz, while consuming only 10 mW. Acoustic measurements in combination with a prototype transducer array demonstrate pulse transmission and reception. Finally, a B-mode image of a needle phantom demonstrates the imaging capability.

Original languageEnglish
Title of host publication38th Annual Custom Integrated Circuits Conference
Subtitle of host publicationA Showcase for Integrated Circuit Design in Silicon Hills, CICC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
ISBN (Electronic)9781509051915
DOIs
Publication statusPublished - 26 Jul 2017
Event38th Annual Custom Integrated Circuits Conference, CICC 2017 - Austin, United States
Duration: 30 Apr 20173 May 2017

Publication series

SeriesProceedings of the Custom Integrated Circuits Conference
Volume2017-April
ISSN0886-5930

Conference

Conference38th Annual Custom Integrated Circuits Conference, CICC 2017
Country/TerritoryUnited States
CityAustin
Period30/04/173/05/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

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