2 research outputs found
Integrated circuit design for implantable neural interfaces
Progress in microfabrication technology has opened the way for new possibilities in
neuroscience and medicine. Chronic, biocompatible brain implants with recording and
stimulation capabilities provided by embedded electronics have been successfully demonstrated. However, more ambitious applications call for improvements in every aspect of
existing implementations. This thesis proposes two prototypes that advance the field in
significant ways. The first prototype is a neural recording front-end with spectral selectivity capabilities that implements a design strategy that leads to the lowest reported
power consumption as compared to the state of the art. The second one is a bidirectional front-end for closed-loop neuromodulation that accounts for self-interference and
impedance mismatch thus enabling simultaneous recording and stimulation. The design
process and experimental verification of both prototypes is presented herein