Operation of a high frequency piezoelectric ultrasound array with an application specific integrated circuit

Anne Lyse Bernassau, Tim Button, Kyusun Choi, Sandy Cochran, Christine Demore, Luis Garcia-Gancedo, David Hutson, Tom Jackson, Hyunsoo Kim, Insoo Kim, Carl Meggs, Susan Trolier-McKinstry, Rick Tutwiler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Integration of a piezoelectric high frequency ultrasound (HFUS) array with a microfabricated application specific integrated circuit (ASIC) performing a range of functions has several advantages for ultrasound imaging. The number of signal cables between the array/electronics and the data acquisition / imaging system can be reduced, cutting costs and increasing functionality. Electrical impedance matching is also simplified and the same approach can reduce overall system dimensions for applications such as endoscopic ultrasound. The work reported in this paper demonstrates early ASIC operation with a piezocomposite HFUS array operating at approximately 30 MHz. The array was tested in three different modes. Clear signals were seen in catch-mode, with an external transducer as a source of ultrasound, and in pitch-mode with the external transducer as a receiver. Pitch-catch mode was also tested successfully, using sequential excitation on three array elements, and viable signals were detected. However, these were relatively small and affected by interference from mixed-signal sources in the ASIC. Nevertheless, the functionality and compatibility of the two main components of an integrated HFUS - ASIC device have been demonstrated and the means of further optimization are evident.

Original languageEnglish (US)
Title of host publication2009 IEEE International Ultrasonics Symposium and Short Courses, IUS 2009
DOIs
StatePublished - 2009
Event2009 IEEE International Ultrasonics Symposium, IUS 2009 - Rome, Italy
Duration: Sep 20 2009Sep 23 2009

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

Other

Other2009 IEEE International Ultrasonics Symposium, IUS 2009
CountryItaly
CityRome
Period9/20/099/23/09

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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