An arbitrary waveform stimulus circuit for visual prostheses using a low-area multibias DAC. - Stephen C. DeMarco; Wentai Liu; Praveen R. Singh; Gianluca Lazzi; Mark S. Humayun; James D. Weiland (IEEE J. Solid State Circuits, 2003)

A matched biphasic microstimulator for an implantable retinal prosthetic device. - Praveen R. Singh; Wentai Liu; Mohanasankar Sivaprakasam; Mark S. Humayun; James D. Weiland (ISCAS (4), 2004)