Gabriel Bertotti

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A high spatiotemporal resolution, wireline operation-based, in-vivo neural recording system is presented. The proposed system allows selecting 64 channels from 512 recording sites. The neural signals from the 64 selected sites are amplified, filtered, and finally multiplexed in the time domain. The output signals of each multiplexer are buffered, converted(More)
An 8 bit segmented current steering DAC is presented for the compensation of mismatch of sensors with current output arranged in a large arrays. The DAC is implemented in a 1.8 V supply voltage 180 nm standard CMOS technology. Post layout simulations reveal that the design target concerning a sampling frequency of 2.6 MHz is exceeded, worst-case settling(More)
Local field potentials (LFPs) contain relevant information about neuronal population activity [1]. They are commonly measured in the brain to investigate information processing by neural circuits and for neuroprosthetics applications. We present a novel method allowing for in vivo `electrical imaging' of LFPs. An oxide-insulated neural probe was implanted(More)
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