A Compact Neural Amplifier with High Input Impedance

摘要：

　　In this paper,we present a new compact,high- input-impedance amplifier for neural signal acquisition.In this design,current feedback is achieved in a modified fully differential folded cascode amplifier to isolate the input signal from the feedback connection and thus increase the input impedance of the preamplifier.Common mode feedback circuits and ponderous capacitors are eliminated by using this structure.A band-pass filter with configurable low-frequency roll-off is connected to the preamplifier to further condition the signal.The whole design achieves the merits of high impedance,compact,low power and low noise.Simulation results are provided in this paper.

关键词： neural amplifier neural electrode high imput impedance current-reuse low power low noise

作者: Jialin Liu Xu Zhang Bin Li Ming Liu Hongda Chen

作者单位: State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of School of Electronic and Information Engineering, South China University of Technology, Guangzhou 51

会议类型: 国际会议

会议名称: 2015 IEEE Advanced Information Technology, Electronic and Automation Control Conference(IAEAC 2015)(2015 IEEE先进信息技术,电子与自动化控制国际会议)

会议地点: 重庆

会议语种:英文

页码: 233-237

在线出版日期: 2015-12-19（万方平台首次上网日期，不代表论文的发表时间）