Title :
A telemetrically powered and controlled implantable neural recording system with CMOS interface circuitry
Author :
Akin, Tayfun ; Najafi, Khalil
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
Reports the development of an implantable, fully integrated, single-chip, multichannel sieve electrode neural recording system, which is powered and communicated using an RF telemetry link. The system allows neural recordings of ±500 μV signals from regenerated axons, which are amplified with on-chip 100 Hz to 3.1 kHz bandlimited amplifiers, multiplexed, and digitized with a low-power current-mode 8-bit ADC. The signal processing CMOS circuitry dissipates only 15 mW power, operates from a 5V supply, and consumes 4×4 mm2 of area
Keywords :
CMOS integrated circuits; biomedical electronics; biomedical telemetry; neurophysiology; -500 muV; 100 Hz to 3.1 kHz; 15 mW; 5 V; 500 muV; CMOS interface circuitry; RF telemetry link; low-power current-mode 8-bit ADC; medical electronic system; multichannel sieve electrode neural recording system; on-chip bandlimited amplifiers; regenerated axons; signal processing CMOS circuitry; telemetrically powered/controlled implantable neural recording system; Circuits; Control systems; Electrodes; Nerve fibers; Nervous system; Radio frequency; Signal processing; Silicon; System-on-a-chip; Telemetry;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.381035
