DOI

This paper presents a custom-designed single-cable readout IC for the reception of the broadband photoacoustic (PA) signal in intravascular photoacoustic (IVPA) imaging. The readout IC is intended for direct integration behind a broadband polyvinylidene fluoride (PVDF) transducer in an IVPA catheter tip to match the impedance between the small PVDF element and the connecting cable. The capability of the readout IC to work with a single cable that combines the output signal and the power supply ensures the mechanical flexibility of the IVPA catheter. Electrical measurements show that the readout IC provides a flat frequency response from 1 MHz to 20 MHz with a 6 mA external current supply. The acoustical measurements involving the readout IC and the PVDF transducer demonstrate a 60 dB dynamic range, a sensitivity of 3.8 μV/Pa at 2.25 MHz, and a broad receiving bandwidth from 2 MHz to 15 MHz.
Original languageEnglish
Title of host publicationProceedings 2015 IEEE International Ultrasonics Symposium
Place of PublicationPiscataway, NJ, USA
PublisherIEEE Society
Pages1-4
Number of pages4
ISBN (Print)978-1-4799-8182-3
DOIs
StatePublished - 2015
Event2015 IEEE International Ultrasonics Symposium, IUS - Taipei, Taiwan, Province of China

Publication series

Name
PublisherIEEE

Conference

Conference2015 IEEE International Ultrasonics Symposium, IUS
Abbreviated titleIUS 2015
CountryTaiwan, Province of China
CityTaipei
Period21/01/1524/10/15
Internet address

    Research areas

  • system integration, instravascular photoacoustic imaging, PVDF transducer readout IC, single-cable …

ID: 3399984