A Front-End ASIC with High-Voltage Transmit Switching and Receive Digitization for Forward-Looking Intravascular Ultrasound

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

6 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 publicationCICC 2017 - 38th Annual Custom Integrated Circuits Conference
PublisherIEEE
Pages1-4
Number of pages4
ISBN (Electronic)978-1-5090-5191-5
DOIs
Publication statusPublished - 2017
EventCICC 2017: The 38th Annual Custom Integrated Circuits Conference - A Showcase for Integrated Circuit Design in “Silicon Hills” - Austin, TX, United States
Duration: 30 Apr 20173 May 2017
Conference number: 38
http://ieee-cicc.org/2017/

Conference

ConferenceCICC 2017
CountryUnited States
CityAustin, TX
Period30/04/173/05/17
Internet address

Keywords

  • cable-count reduction
  • high-voltage switching
  • instravascular ultrasound imaging
  • piezo-electric transducer
  • receive digitization

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