2006 · 47 citations · 2 references
EngineeringBiomedical EngineeringElectrical EngineeringBioinstrumentationElectrophysiologyNeural EngineeringImplantable Biomedical DevicesImplantable MicrosystemsImplantable Neural DevicesNeurostimulationOcular ImplantsCharge BalancingElectrode - Nerve InterfaceElectrode InterfacesImplantable Neural ElectrodesNeural Stimulation DevicesRetinal Implantation DevicesRetinal ImplantsRetinal Stimulation
A 0.1mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> autonomous and digitally programmable nerve stimulation pad cell in 0.35μm HVCMOS is used in a 232-electrode retinal implant. It provides greater than plusmn15V swing at the electrode in order to supply suitable stimulation currents into large electrode impedances. Customized ESD protection is used on all electrodes. Charge balancing is applied to prevent electrolysis
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Wentai Liu, M.S. Hurnayun · International Solid-State Circuits Conference · 2004 · 95 citations