New multifunctional CMOS microelectrode array system published in *IEEE Journal of Solid-State Circuits"
New multi-functional microelectrode array system featuring 59’760 electrodes, 2048 electrophysiology channels, impedance and neurotransmitter measurement units, as well as stimulation units was published in IEEE Journal of Solid-State Circuits.
The new multi-functional microelectrode array system developed by Jelena Dragas, Vijay Viswam, Amir Shadmani, Yihui Chen, Jan Müller and Alexander Stettler in 180-nm CMOS technology was published in the IEEE Journal of Solid-State Circuits (2017, Volume 52(6), 1576-1590).
The system features the largest active electrode array area to date (4.48 x 2.43 mm²) to accommodate 59,760 electrodes, while its power consumption, noise characteristics, and spatial resolution (13.5-μm electrode pitch) are comparable to the best state-of-the-art devices. The system includes 2048 action potential (AP, bandwidth: 300 Hz-10 kHz) recording units, 32 local-field-potential (LFP, bandwidth: 1 Hz-300 Hz) recording units, 32 current recording units, 32 impedance measurement units, and 28 neurotransmitter detection units, in addition to the 16 dual-mode voltage-only or current/voltage-controlled stimulation units. The electrode array architecture is based on a switch matrix, which allows for connecting any measurement/stimulation unit to any electrode in the array and for performing different measurement/stimulation functions in parallel.
The external pageIEEE Journal of Solid-State Circuits is the flagship journal of the IEEE Solid-State Circuits Society and is the premier forum for presenting advances in solid-state circuits and microelectronics.