A 16times16-channel 3.5times4.5mm 2  neural recording interface is fabricated in 0.35mum CMOS and is integrated with on-chip 3D Au and Pt microelectrodes. Each channel dissipates 15muW with an input-referred noise of 7muV over 5kHz bandwidth. A switched-capacitor delta read-out data-compression circuit trades recording accuracy for the output data rate. In-vitro experimental results validate the circuit design and the on-chip 3D electrode bonding technology
['Joseph N. Y. Aziz', 'Roman Genov', 'Miron Derchansky', 'Berj L. Bardakjian', 'Peter L. Carlen']
256-Channel Neural Recording Microsystem with On-Chip 3D Electrodes