Implantable Multichannel CMOS Stimulator for Cochlear Prosthesis

A first monolithic programmable multichannel stimulator for cochlear prosthesis has been successfully implemented in 2 μm Si-gate CMOS technology. The stimulator is to be implanted in the mastoid bone. The system provides separate transcutaneous power and data links and can stimulate 15 cochlear electrodes simultaneously with different stimulus currents.