Title :
A high-performance adaptive ENG amplifier
Author :
Triantis, Iasonas F. ; Demosthenous, Andreas
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
Abstract :
This paper describes an integrated adaptive amplifier for receding electroneurogram (ENG) from tripolar cuff electrodes. The amplifier can automatically compensate for cuff imbalance, thus offering a fully implantable solution to this problem. The circuit was fabricated in 0.8 μm BiCMOS technology with an active area of 0.7 mm . Measured results showed that the ENG amplifier has a cuff imbalance correction range of > ±40%, and a signal-to-interference ratio of about 2/1 (6 dB) even for ±40% imbalance.
Keywords :
BiCMOS integrated circuits; bioelectric potentials; microelectrodes; neurophysiology; operational amplifiers; preamplifiers; prosthetics; BiCMOS technology; cuff imbalance; electroneurogram; high-performance adaptive ENG amplifier; tripolar cuff electrodes; BiCMOS integrated circuits; Circuit synthesis; Differential amplifiers; Educational institutions; Electric variables control; Electrodes; Electromyography; Interference; Preamplifiers; Voltage;
Conference_Titel :
Biomedical Circuits and Systems, 2004 IEEE International Workshop on
Print_ISBN :
0-7803-8665-5
DOI :
10.1109/BIOCAS.2004.1454172
