A load-modulation digital data link for miniature ultrasound probes

Miniature ultrasound probes, such as intravascular ultrasound (IVUS) probes, are valuable diagnostic tools and provide image guidance during minimallyinvasive interventions. As more ultrasound transducer elements are built into such probes to improve image quality and frame rate, it becomes increasingly difficult to accommodate the cables needed...

An ASIC with Bipolar High-Voltage Transmit Switching for a Single-Cable Intra-Vascular Ultrasound Probe

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...

A low-noise amplifier for ultrasound imaging with continuous time-gain compensation

This work presents a low-noise amplifier (LNA) for ultrasound imaging with built-in continuous time-gain compensation (TGC), which compensates for the time-dependent attenuation of the received echo signal and thus significantly reduces its dynamic range (DR). The proposed design combines the LNA and TGC functions in a single variable-gain...

A Low-Power Area-Efficient SAR-Assisted Hybrid ADC for Ultrasound Imaging

This thesis presents a Low-Power Area-Ecient SAR-Assisted Hybrid ADC for ultra-<br/>sound imaging systems. This ADC combines a 5-bit SAR ADC per channel with a 4-bit single-slope ADC that produces the converter's LSBs and is implemented using shared hardware. The number of unit capacitors of the proposed ADC is about 1/16th of that of a 9-bit...