Print Email Facebook Twitter An ASIC with Bipolar High-Voltage Transmit Switching for a Single-Cable Intra-Vascular Ultrasound Probe Title An ASIC with Bipolar High-Voltage Transmit Switching for a Single-Cable Intra-Vascular Ultrasound Probe Author Nagarkar, Rishabh Nitin (TU Delft Electrical Engineering, Mathematics and Computer Science) Contributor Pertijs, Michiel (mentor) van Willigen, Douwe (graduation committee) Fan, Qinwen (graduation committee) Spirito, Marco (graduation committee) Degree granting institution Delft University of Technology Programme Electrical Engineering Date 2019-09-19 Abstract An ASIC is presented for intra-vascular ultrasound imaging. Despite being connected via a single coaxial cable, it is able to pass arbitrary high voltage bipolar signals to the transducers for acoustic imaging. The thesis talks about the need to reduce the cable count to one and reviews the existing work in literature. It builds up on an existing single cable design and focuses on the transmit part to make it compatible to a large number of ultrasound imaging modes by allowing it to pass high frequency signals up to 20MHz and bipolar signal voltages up to ±25V . The chip is phantom powered and thus its power supply and signals are transmitted on the same cable. The transmit switch designed for this ASIC is powered by and controlled by an on-chip low voltage supply and circuitry. The prototype ASIC has been designed in TSMC 180nm HV BCD Gen2 technology. This single cable design has 16 elements for transmit and 64 elements in the receive mode and was evaluated using simulations. Subject Intra-vascularsingle-cablebipolarhigh-voltageCMOStransmit switchbi-directionalultrasoundisolation To reference this document use: http://resolver.tudelft.nl/uuid:b18f828d-86c7-4730-8ea7-e1d903f012ce Part of collection Student theses Document type master thesis Rights © 2019 Rishabh Nitin Nagarkar Files PDF Rishabh_Nitin_Nagarkar_Thesis.pdf 5.01 MB Close viewer /islandora/object/uuid:b18f828d-86c7-4730-8ea7-e1d903f012ce/datastream/OBJ/view