Title :
An implantable neural interface micro-stimulator chip with external controllability
Author :
Chua-Chin Wang ; Hsueh, Ya-Hsin ; Hsiao, Yu-Tzu ; U Fat Chio ; Huang, Chi-Chun ; Liu, Pai-Li
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
Various implantable micro-stimulators have been proposed for clinical applications in recent years. A small and flexible implanted device is the key component to any field application. This multiparameter implantable SOC (system-on-chip) chip design is aimed at neural interface stimulation, which includes controllable stimulators, and telemetry for data and power transmission. The micro-stimulator consists of 2-channel addressable current-source stimulators with seven parameters can be controlled by the external device. The external transmitter employs the RS232 format as the data transmission protocol and utilizes the NRZ code to transmit instructions and data to the implanted SOC chip. The entire SOC circuit is implemented on silicon by 0.35 μm CMOS 2P4M technology.
Keywords :
CMOS integrated circuits; biocontrol; biomedical electronics; biomedical telemetry; neuromuscular stimulation; peripheral interfaces; prosthetics; system-on-chip; transceivers; CMOS 2P4M technology; Class-E amplifier; NRZ code; RS232 format; addressable current-source stimulators; data transmission protocol; external controllability; implantable microstimulators; internal transceiver; multiparameter implantable SOC; neural interface microstimulator chip; post-layout simulation; small flexible implanted device; synchronization packets; telemetry; CMOS technology; Chip scale packaging; Control systems; Controllability; Data communication; Power transmission; Protocols; System-on-a-chip; Telemetry; Transmitters;
Conference_Titel :
Advanced System Integrated Circuits 2004. Proceedings of 2004 IEEE Asia-Pacific Conference on
Print_ISBN :
0-7803-8637-X
DOI :
10.1109/APASIC.2004.1349495
