Title :
An ENG Amplifier with Passive EMG Neutralization
Author :
Demosthenous, Andreas ; Pachnis, Ioannis ; Rahal, Mohamad ; Jiang, Dai ; Donaldson, Nick
Author_Institution :
Univ. Coll. London, London
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-¿m BiCMOS process technology and preliminary measured results are presented. Input signals as low as 1¿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;
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
DOI :
10.1109/ICECS.2007.4510932
