Recording Front-End Electronics for Large-Scale Implantable Brain-Computer Interfaces: A Design Perspective

This paper discusses recent advancements in recording front-end electronics for large-scale implantable brain-computer interfaces. Various system architectures and circuit techniques can be leveraged to achieve both area- and power-efficient implementations. Here, we elaborate on the trade-offs between different approaches, with specific examples highlighting details of recently proposed solutions. We also provide several practical design tips and tricks for implementing such front-end electronics in standard CMOS technologies. Finally, we discuss the most interesting future directions for the field.