A Stimulator ASIC Featuring Versatile Management for Vestibular Prostheses

作者：Jiang Dai^*; Demosthenous Andreas; Perkins Timothy A; Liu Xiao; Donaldson Nick

来源：IEEE Transactions on Biomedical Circuits and Systems, 2011, 5(2): 147-159.

DOI：10.1109/TBCAS.2011.2138139

• Charge balance
• data compression
• implanted device
• neural stimulation
• stimulation management
• vestibular prosthesis

This paper presents a multichannel stimulator ASIC for an implantable vestibular prosthesis. The system features versatile stimulation management which allows fine setting of the parameters for biphasic stimulation pulses. To address the problem of charge imbalance due to rounding errors, the digital processor can calculate and provide accurate charge correction. A technique to reduce the data rate to the stimulator is described. The stimulator ASIC was implemented in 0.6-mu m high-voltage CMOS technology occupying an area of 2.27 mm(2). The measured performance of the ASIC has been verified using vestibular electrodes in saline.

• 出版日期2011-4