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A stimulator ASIC with capability of neural recording during inter-phase delay

Liu, X; Demosthenous, A; Jiang, D; Vanhoestenberghe, A; Donaldson, N; (2011) A stimulator ASIC with capability of neural recording during inter-phase delay. In: (pp. pp. 215-218).

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Abstract

This paper presents a single chip solution for a combined stimulation and recording system for functional electrical stimulation applications. The on-chip recording amplifier blanks large stimulation artifacts occurring in the cathodic (i.e., stimulation) and anodic (i.e., recuperation) phases of a stimulation pulse. By making the stimulator output stage float and recording during the delay between cathodic and anodic impulses, the recording start time can be greatly advanced from the end of a complete stimulation cycle to the end of the cathodic phase. The ASIC was fabricated in a 0.6 μm HV CMOS technology, occupies a core area of 5.3 mm 2 and operates from a single 18 V power supply. It has 5 I/O pads for power and data communication and another 5 I/O pads for connecting to the electrodes. The operation of the ASIC has been verified both in-vitro and in-vivo. © 2011 IEEE.

Type: Proceedings paper
Title: A stimulator ASIC with capability of neural recording during inter-phase delay
ISBN-13: 9781457707018
DOI: 10.1109/ESSCIRC.2011.6044903
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1340798
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