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Input Capacitance Compensated Neural Recording Amplifier
Chen, Changhao1,2,4; Cui, Xutong1,2; Pun, Sio Hang1,2; Mak, Peng Un2; Mak, Pui-In1,2; Vai, Mang I.1,2; Klug, Achim3; Lei, Tim4
2015-04-23
Conference Name7th International IEEE EMBS Conference on Neural Engineering
Source PublicationIEEE EMBS Neural Engineering Conference (NER)
Conference DateApril 22-24, 2015
Conference PlaceMontpellier, France
Abstract

 Extracellular recording of a single neuron requires the use of a sharp electrode to measure action potentials originating from the target neuron while rejecting interference from other non-target neurons in the surrounding. Here we propose adding a feedback capacitor in the amplifier design to lower the equivalent input capacitance. The benefit of lowering the overall input capacitance is two-fold: 1) the cut-off frequency of the recording bandwidth is increased to above 5 kHz, and 2) the signal-to-noise ratio is also increased.

KeywordNeural Interfaces - Microelectrode And Fabrication Technologies
Language英语
Fulltext Access
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
INSTITUTE OF MICROELECTRONICS
Affiliation1.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Taipa 999078, Macau
2.Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Taipa 999078, Macau
3.Department of Physiology and Biophysics, University of Colorado School of Medicine, Aurora, CO 80045, USA
4.Department of Electrical Engineering, University of Colorado Denver, Denver, CO 80217-3364, USA
First Author AffilicationUniversity of Macau;  Faculty of Science and Technology
Recommended Citation
GB/T 7714
Chen, Changhao,Cui, Xutong,Pun, Sio Hang,et al. Input Capacitance Compensated Neural Recording Amplifier[C],2015.
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