Title :
Fully integrated neural stimulation system (FINESS)
Author :
Rangarajan, Rajagopalan ; Von Arx, Jeffiey A. ; Najafi, Khalil
Author_Institution :
Center for Integrated Microsystems, Michigan Univ., Ann Arbor, MI, USA
Abstract :
Presents a fully integrated telemetrically powered functional nerve stimulation system consisting of a BiCMOS integrated circuit and an external Class E transmitter. The integrated circuit chip can deliver a biphasic waveform up to 2 mA of current to 8 sets of bipolar stimulating electrodes of 1.5 kΩ impedance. The output current is programmable in 65 μA steps and it can stimulate up to 2 ms in steps of 16 μs. The whole chip consumes 25 mW of power under maximum stimulation conditions and less than 10 mW under no stimulation conditions. The control and data signals are sent with a pulse width modulation protocol using pulse amplitude modulation on a 4 MHz carrier wave using a class E transmitter
Keywords :
BiCMOS integrated circuits; biomedical electrodes; biomedical electronics; biomedical telemetry; mixed analogue-digital integrated circuits; neuromuscular stimulation; prosthetic power supplies; pulse amplitude modulation; pulse width modulation; 1.5 kohm; 2 mA; 2 ms; 25 mW; 4 MHz; BiCMOS integrated circuit; FINESS; biphasic waveform; bipolar stimulating electrodes; external Class E transmitter; fully integrated neural stimulation system; maximum stimulation conditions; output current; pulse amplitude modulation; pulse width modulation protocol; telemetrically powered system; Amplitude modulation; BiCMOS integrated circuits; Bipolar integrated circuits; Electrodes; Impedance; Protocols; Pulse width modulation; Space vector pulse width modulation; Telemetry; Transmitters;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.951403
