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This paper reports a fully-integrated multi-output CMOS power regulator designed for telemetry-powered implantable microsystems. It is comprised of a CMOS full-wave bridge rectifier, a wide-range multi-output voltage reference and DC level shifter circuits, and three linear voltage regulators. The power regulator fabricated in a 1.5mum standard CMOS process, provides 5V, 3V, and 1.5V regulated outputs,...
A thin-film cochlear electrode array has been developed for a cochlear prosthesis to achieve improved sound perception and position accuracy. The array is fabricated using a bulk-silicon micromachining process that allows parylene deposition and patterning at wafer level, followed by a wet silicon release etch that is compatible with the use of boron etch-stops. The process is capable of realizing...
This paper introduces a generic controller designed for telemetry-controlled microsystems. This controller receives a data packet through a serial link carrying a command word and the associated data, and is capable of generating a variety of control/timing signals according to the definition of the received command. The flexible microprogrammed architecture of the controller allows for defining the...
A 64-channel neural processor has been developed for use in an implantable neural recording microsystem. In the scan mode, the processor is capable of detecting positive, negative, and biphasic spikes with programmable thresholds. It collects action potential information from the input channels, tags the activities with the associated channel address, compresses and finally packs the activity information...
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