Title :
Low power BIN integrator dedicated to neural signal processing
Author :
Harb, Atef ; Sawan, Mohamad
Author_Institution :
PolySTIM Neurotechnologies Lab., Ecole Polytech. de Montreal, Que., Canada
Abstract :
In this paper, we describe a low-power switched capacitor circuit that rectifies and BIN-integrates (RBI) electroneurogram signals (ENG) recorded from peripheral nerves. The RBI could be completed after an analog-to-digital conversion by adding 16 digital words followed by a 4 LSB bits truncation. This circuit constitutes a part of an implantable nerve signal recording system. The analog part has been designed in a CMOS 0.35 μm, 3.3 V technology. At a supply voltage of 2.2 V the power dissipation of the analog block is below 225 μW, and the error in RBI calculation is lower than 0.15%.
Keywords :
CMOS analogue integrated circuits; bioelectric potentials; biomedical electronics; handicapped aids; integrating circuits; low-power electronics; medical signal processing; neuromuscular stimulation; switched capacitor networks; 0.35 micron; 2.2 V; 225 muW; 3.3 V; CMOS analogue IC; ENG; RBI calculation; analog-to-digital conversion; electroneurogram signals; functional electrical stimulation; implantable nerve signal recording system; low power BIN integrator; neural signal processing; power dissipation; switched capacitor circuit; Biomedical signal processing; Bladder; Control systems; Equations; Filling; Laboratories; Performance gain; Signal processing; Switched capacitor circuits; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045327
