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Authors: Mario A. Meza Cuevas ; Lait Abu Saleh ; Dietmar Schroeder and Wolfgang Krautschneider

Affiliation: Hamburg University of Technology, Germany

ISBN: 978-989-8425-91-1

Keyword(s): Neurostimulation, Electrical stimulation, Stimulation waveform, Implant, Current stimulation, Dac, Current steering.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Instruments and Devices ; Brain-Computer Interfaces ; Devices ; Electrical Bio-Impedance ; Human-Computer Interaction ; Implantable Electronics ; Low-Power Design ; Nanotechnologies ; Physiological Computing Systems

Abstract: Electrical Neurostimulation has been effective in several medical therapies and also for restoring physiological, sensory and neuromuscular deficits. The rectangular pulse waveform has been used as a standard shape for neural stimulation. However, it has been shown that non-rectangular waveforms provide a more energy-efficient neural stimulation. An ASIC has been developed composed of a stimulator, capable of driving several current waveforms, and an analog channel for biosignal acquisition. The design is implemented in 130 nm / 1.2 V CMOS technology, requiring a silicon area of 0.696 mm2. Experimental results show that the stimulator can generate analog signals from a digital input of 8 bits. The output stage can drive up to ±9.8 µA, with a DNL and INL of 0.47 and 1.05 LSB, respectively. Its SFDR is 50.2 dB. And it consumes a maximum of 128.12 µW. The analog input channel presents a power consumption of 140 µW, a gain of 52.2 dB, a bandwidth of 0.5 – 1130 Hz and 10 µVrms of noise.

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Paper citation in several formats:
Meza Cuevas, M.; Abu Saleh, L.; Schroeder, D. and Krautschneider, W. (2012). TOWARD THE OPTIMAL ARCHITECTURE OF AN ASIC FOR NEUROSTIMULATION.In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012) ISBN 978-989-8425-91-1, pages 179-184. DOI: 10.5220/0003774001790184

@conference{biodevices12,
author={Mario A. Meza Cuevas. and Lait Abu Saleh. and Dietmar Schroeder. and Wolfgang Krautschneider.},
title={TOWARD THE OPTIMAL ARCHITECTURE OF AN ASIC FOR NEUROSTIMULATION},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)},
year={2012},
pages={179-184},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003774001790184},
isbn={978-989-8425-91-1},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)
TI - TOWARD THE OPTIMAL ARCHITECTURE OF AN ASIC FOR NEUROSTIMULATION
SN - 978-989-8425-91-1
AU - Meza Cuevas, M.
AU - Abu Saleh, L.
AU - Schroeder, D.
AU - Krautschneider, W.
PY - 2012
SP - 179
EP - 184
DO - 10.5220/0003774001790184

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