Bidirectional peripheral nerve interface with 64 second-order opamp-less ΔΣ ADCs and fully integrated wireless power/data transmission

M ElAnsary, J Xu, J Sales Filho, G Dutta… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
An active probe and microstimulator SoC for interfacing with peripheral nerves is presented.
It performs 64-channel artifact-tolerant neural recording, cuff imbalance compensation by …

Challenges in scaling down of free-floating implantable neural interfaces to millimeter scale

KW Yang, K Oh, S Ha - IEEE Access, 2020 - ieeexplore.ieee.org
Implantable neural interface devices are an emerging technology for continuous brain
monitoring and brain-computer interface (BCI). Recording of electrical signals from neurons …

Chip-scale coils for millimeter-sized bio-implants

P Feng, P Yeon, Y Cheng, M Ghovanloo… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Next generation implantable neural interfaces are targeting devices with mm-scale form
factors that are freely floating and completely wireless. Scalability to more recording (or …

A 3 mm× 3 mm fully integrated wireless power receiver and neural interface system-on-chip

C Kim, J Park, S Ha, A Akinin… - … Circuits and Systems, 2019 - ieeexplore.ieee.org
A miniaturized, fully integrated wireless power receiver system-on-chip with embedded 16-
channel electrode array and data transceiver for electrocortical neural recording and …

Energy-efficient integrated circuit solutions toward miniaturized closed-loop neural interface systems

J Cho, G Seong, Y Chang, C Kim - Frontiers in neuroscience, 2021 - frontiersin.org
Miniaturized implantable devices play a crucial role in neural interfaces by monitoring and
modulating neural activities on the peripheral and central nervous systems. Research efforts …

Distributed neural interfaces: challenges and trends in scaling implantable technology

KM Szostak, P Feng, F Mazza… - Handbook of …, 2021 - Springer
Current implantable neural interfaces, both clinically available solutions and research tools,
rely on a limited number of implanted devices (from one to few units). This factor, aside from …

A fully integrated RF-powered energy-replenishing current-controlled stimulator

S Ha, C Kim, J Park, G Cauwenberghs… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper presents a fully-integrated current-controlled stimulator that is powered directly
from on-chip coil antenna and achieves adiabatic energy-replenishing operation without any …

Seamless capacitive body channel wireless power transmission toward freely moving multiple animals in an animal cage

Y Chang, J Jang, J Cho, J Lee, Y Son… - … Circuits and Systems, 2022 - ieeexplore.ieee.org
Unstable wireless power transmission toward multiple living animals in an animal cage is
one of the significant barriers to performing long-term and real-time neural monitoring in …

Duty-cycled wireless power transmission for millimeter-sized biomedical implants

MA Akram, KW Yang, S Ha - Electronics, 2020 - mdpi.com
Wireless power transmission (WPT) using an inductively coupled link is one of the most
popular approaches to deliver power wirelessly to biomedical implants. As the …

Biopotential measurements and electrodes

A Akinin, A Paul, J Wang, A Buccino… - Neural …, 2020 - Springer
Neural biopotentials are electrical signals generated by the cells of the nervous system.
Recording and monitoring the aggregate or individual behavior of neurons yields …