A Single-Cable PVDF Transducer Readout IC for Intravascular Photoacoustic Imaging

Conference paper (2015)

Authors

C. Chen Software Engineering - EEMCS
V. Daeichin Erasmus MC
Q. Ding Electronic Instrumentation - EEMCS
G. van Soest Erasmus MC
Geert Springeling Erasmus MC
M.A.P. Pertijs Electronic Instrumentation - EEMCS
N. de Jong Erasmus MC,
Research Group
Software Engineering (EEMCS) (TU Delft)
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Published Date

2015

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Software Technology

Research Group

Software Engineering

Abstract

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.