IEEE Transactions on Neural Systems and Rehabilitation Engineering · 2009 · 207 citations · 15 references
EngineeringBiomedical EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsNeural EngineeringAnalog Integrated CircuitsImplantable Biomedical DevicesImplantable Neural DevicesNeural InterfacesNeural Recording TechnologiesNeural Signal AcquisitionAnalog-to-digital ConversionBicmos TechnologyFrequency Shift KeyingImplantable Bioelectronic DevicesNeural RecordingNeural Recording SystemsNeural Signal RecordingWireless Neural Recording
We present benchtop and in vivo experimental results from an integrated circuit designed for wireless implantable neural recording applications. The chip, which was fabricated in a commercially available 0.6- mum 2P3M BiCMOS process, contains 100 amplifiers, a 10-bit analog-to-digital converter (ADC), 100 threshold-based spike detectors, and a 902-928 MHz frequency-shift-keying (FSK) transmitter. Neural signals from a selected amplifier are sampled by the ADC at 15.7 kSps and telemetered over the FSK wireless data link. Power, clock, and command signals are sent to the chip wirelessly over a 2.765-MHz inductive (coil-to-coil) link. The chip is capable of operating with only two off-chip components: a power/command receiving coil and a 100-nF capacitor.
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Neuronal ensemble control of prosthetic devices by a human with tetraplegia
Leigh R. Hochberg, Mijail D. Serruya, Gerhard M. Friehs et al. · Nature · 2006 · 3.3K citations