"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates" "uuid:cd5ed501-6ff9-4bef-a7ae-ddc768643f72","http://resolver.tudelft.nl/uuid:cd5ed501-6ff9-4bef-a7ae-ddc768643f72","A Front-End ASIC With High-Voltage Transmit Switching and Receive Digitization for 3-D Forward-Looking Intravascular Ultrasound Imaging","Tan, M. (TU Delft Electronic Instrumentation); Chen, C. (TU Delft Electronic Instrumentation); Chen, Z. (TU Delft Electronic Instrumentation); Janjic, Jovana (Erasmus MC); Daeichin, V. (TU Delft ImPhys/Acoustical Wavefield Imaging); Chang, Z.Y. (TU Delft Electronic Instrumentation); Noothout, E.C. (TU Delft ImPhys/Acoustical Wavefield Imaging); van Soest, G. (Erasmus MC); Verweij, M.D. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC); de Jong, N. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC); Pertijs, M.A.P. (TU Delft Electronic Instrumentation)","","2018","This paper presents an area- and power-efficient application-specified integrated circuit (ASIC) for 3-D forward-looking intravascular ultrasound imaging. The ASIC is intended to be mounted at the tip of a catheter, and has a circular active area with a diameter of 1.5 mm on the top of which a 2-D array of piezoelectric transducer elements is integrated. It requires only four micro-coaxial cables to interface 64 receive (RX) elements and 16 transmit (TX) elements with an imaging system. To do so, it routes high-voltage (HV) pulses generated by the system to selected TX elements using compact HV switch circuits, digitizes the resulting echo signal received by a selected RX element locally, and employs an energy-efficient load-modulation datalink to return the digitized echo signal to the system in a robust manner. A multi-functional command line provides the required sampling clock, configuration data, and supply voltage for the HV switches. The ASIC has been realized in a 0.18-μm HV CMOS technology and consumes only 9.1 mW. Electrical measurements show 28-V HV switching and RX digitization with a 16-MHz bandwidth and 53-dB dynamic range. Acoustical measurements demonstrate successful pulse transmission and reception. Finally, a 3-D ultrasound image of a three-needle phantom is generated to demonstrate the imaging capability.","Cable-count reduction; Catheters; high-voltage (HV) switching; Imaging; Impedance; intravascular ultrasound (IVUS) imaging; piezoelectrical transducer; receive digitization; Switches; Transducers; Ultrasonic imaging; Wires","en","journal article","","","","","","Accepted author manuscript","","","","","Electronic Instrumentation","","",""