An ENG Amplifier with Passive EMG Neutralization

Author

Demosthenous, Andreas ; Pachnis, Ioannis ; Rahal, Mohamad ; Jiang, Dai ; Donaldson, Nick

Author_Institution

Univ. Coll. London, London

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

66

Lastpage

69

Abstract

We describe an implantable electroneurogram (ENG) amplifier dedicated to incontinence and other functional electrical stimulation applications. The amplifier features a novel simple passive technique for removing myoelectric (EMG) interference in neural recording systems using tripolar cuff electrodes. The system blocks of the front-end (instrumentation amplifier, post-filter, rectifier and programmable gain block) are described. The amplifier was fabricated in a 3-V 0.35-Â¿m BiCMOS process technology and preliminary measured results are presented. Input signals as low as 1Â¿V can be reliably detected.

Keywords

BiCMOS integrated circuits; amplifiers; BiCMOS process technology; ENG amplifier; electroneurogram; passive EMG neutralization; Bridge circuits; Educational institutions; Electrodes; Electromyography; Impedance; Implants; Instruments; Interference; Low-noise amplifiers; Neuromuscular stimulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on

Conference_Location

Marrakech

Print_ISBN

978-1-4244-1377-5

Electronic_ISBN

978-1-4244-1378-2

Type

conf

DOI

10.1109/ICECS.2007.4510932

Filename

4510932