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York University

1. Moeinfard, Tania. An 8-Channel Bidirectional Neurostimulator IC with a Highly-Linear High-Dynamic-Range ADC-Direct Architecture for Simultaneous Recording and Stimulation.

Degree: MASc - Master of Applied Science, Electrical and Computer Engineering, 2021, York University

URL: http://hdl.handle.net/10315/38160 

This thesis presents the design, implementation, and validation of an 8-channel bidirectional neurostimulator IC with a highly-linear high-dynamic-range ADC-direct architecture for simultaneous recording and stimulation. Each channel hosts a novel highly-linear high-dynamic-range recording architecture capable of amplification and quantization of brains neural signals in the presence of large differential-mode and common-mode stimulation artifacts, as well as a fully-programmable 8-bit current-mode electrical stimulator. The architecture enables the possibility of a patient-specific stimulation therapy required for the next generation of implantable closed-loop neuro-stimulators used for treatment of various neurological disorders. The proposed design adopts an ADC-direct architecture employing a dual-loop SAR-assisted continuous-time delta-sigma ADC architecture for differential-mode stimulation artifacts and offset removal. The presented channel achieves a high input impedance (1.8 G at 1 kHz), 400 mV linear input signal range, 94 dB dynamic range, and consumes 4.6 W with a signal bandwidth of 5 kHz. Advisors/Committee Members: Kassiri, Hossein (advisor).

Subjects/Keywords: Biomedical Engineering; Neural Recording; Simultaneous Recording and Stimulation; Closed-loop Stimulation; Front End; Continuous Time; Delta Sigma; Dynamic Range; Linear Input Range

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Moeinfard, T. (2021). An 8-Channel Bidirectional Neurostimulator IC with a Highly-Linear High-Dynamic-Range ADC-Direct Architecture for Simultaneous Recording and Stimulation. (Masters Thesis). York University. Retrieved from http://hdl.handle.net/10315/38160

Chicago Manual of Style (16th Edition):

Moeinfard, Tania. “An 8-Channel Bidirectional Neurostimulator IC with a Highly-Linear High-Dynamic-Range ADC-Direct Architecture for Simultaneous Recording and Stimulation.” 2021. Masters Thesis, York University. Accessed April 22, 2021. http://hdl.handle.net/10315/38160.

MLA Handbook (7th Edition):

Moeinfard, Tania. “An 8-Channel Bidirectional Neurostimulator IC with a Highly-Linear High-Dynamic-Range ADC-Direct Architecture for Simultaneous Recording and Stimulation.” 2021. Web. 22 Apr 2021.

Vancouver:

Moeinfard T. An 8-Channel Bidirectional Neurostimulator IC with a Highly-Linear High-Dynamic-Range ADC-Direct Architecture for Simultaneous Recording and Stimulation. [Internet] [Masters thesis]. York University; 2021. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10315/38160.

Council of Science Editors:

Moeinfard T. An 8-Channel Bidirectional Neurostimulator IC with a Highly-Linear High-Dynamic-Range ADC-Direct Architecture for Simultaneous Recording and Stimulation. [Masters Thesis]. York University; 2021. Available from: http://hdl.handle.net/10315/38160

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