Simulation of a monolithically integrated CMOS bioamplifier for EEG recordings
| Data(s) |
2005
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| Resumo |
A monolithically integrated CMOS bioamplifier is presented in this paper for EEG recording applications. The capacitive-coupled circuit input structure is utilized to eliminate the large and random DC offsets existing in the electrode-tissue interface. Diode-connected NMOS transistors with negative voltage between gate and source are candidates for large resistors necessary to the bioamplifier. A passive BEF (Band Eliminator Filter) can reduce 50 Hz noise disturbance strength by more than 60 dB. A novel analysis approach is given to help determine the noise power spectral density. Simulation results show that the two-stage CMOS bioamplifier in a closed-loop capacitive feedback configuration,provides an AC in-band gain of 39.6 dB, a DC gain of zero, and an input-referred noise of 87 nVrms integrated from 0.01 Hz to 100 Hz. A monolithically integrated CMOS bioamplifier is presented in this paper for EEG recording applications. The capacitive-coupled circuit input structure is utilized to eliminate the large and random DC offsets existing in the electrode-tissue interface. Diode-connected NMOS transistors with negative voltage between gate and source are candidates for large resistors necessary to the bioamplifier. A passive BEF (Band Eliminator Filter) can reduce 50 Hz noise disturbance strength by more than 60 dB. A novel analysis approach is given to help determine the noise power spectral density. Simulation results show that the two-stage CMOS bioamplifier in a closed-loop capacitive feedback configuration,provides an AC in-band gain of 39.6 dB, a DC gain of zero, and an input-referred noise of 87 nVrms integrated from 0.01 Hz to 100 Hz. zhangdi于2010-03-29批量导入 zhangdi于2010-03-29批量导入 IEEE Electron Devices Soc.; IEEE Solid State Circuits Soc.; IEEE Hong Kong Sect.; KC Wong Educ Fdn.; Solomon Systech Ltd. Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China IEEE Electron Devices Soc.; IEEE Solid State Circuits Soc.; IEEE Hong Kong Sect.; KC Wong Educ Fdn.; Solomon Systech Ltd. |
| Identificador | |
| Idioma(s) |
英语 |
| Publicador |
IEEE 345 E 47TH ST, NEW YORK, NY 10017 USA |
| Fonte |
Sui, XH (Sui Xiaohong); Liu, JB (Liu Jinbin); Gu, M (Gu Ming); Pei, WH (Pei Weihua); Chen, HD (Chen Hongda) .Simulation of a monolithically integrated CMOS bioamplifier for EEG recordings .见：IEEE .2005 IEEE CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS丛书标题: IEEE Conference on Electron Devices and Solid-State Circuits ,345 E 47TH ST, NEW YORK, NY 10017 USA ,2005,PROCEEDINGS: 643-646 |
| Palavras-Chave | #光电子学 #AMPLIFIER |
| Tipo |
会议论文 |
