A 1600-pixel Subretinal Chip with DC-free Terminals and ±2V Supply Optimized for Long Lifetime and High Stimulation Efficiency

• Published in: 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers pp. 144 - 602
• Main Authors: Rothermel, Albrecht, Wieczorek, Volker, Liu, Liu, Stett, Alfred, Gerhardt, Matthias, Harscher, Alex, Kibbel, Steffen
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.02.2008
• Subjects: Driver circuits; Electrodes; Impedance; Implants; Rectifiers; Retina; Switches; Tin; Variable structure systems; Voltage control

Retinal implants are developed to restore visual perception in blind patients. The retina can be stimulated from either side (epiretinal (M. Ortmanns et al., 2007) or subretinal (L. Theogarajan et al., 2006), (E. Zrenner, 2002)). With a subretinal light sensitive chip, the natural optical system of...