TOWARD THE OPTIMAL ARCHITECTURE OF AN ASIC FOR NEUROSTIMULATION

Mario A. Meza Cuevas, Lait Abu Saleh, Dietmar Schroeder, Wolfgang Krautschneider

2012

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 Harvard Style

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


in Bibtex Style

@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},
}


in EndNote Style

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