NDLI: Design of ECG Front End Amplifier Based on CMOS OTA

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Design of ECG Front End Amplifier Based on CMOS OTA

Content Provider	Scilit
Author	Zhang, Zekun Meng, Fanxiang Fan, Luyuan
Copyright Year	2021
Description	Journal: Journal of Physics: Conference Series The low-noise and low-power amplifier, an important part of ECG recordings, remains a vital challenge in the biomedical instrumentation amplifier field. This paper describe a method of using the capacitive feedback structure and the MOS-bipolar pseudo-resistor to reject the DC offset and amplify signals down to the milli-hertz range. This study used the noise efficiency factor (NEF) to quantify the tradeoff between power and noise. Fabricated in a 180 nm CMOS process, the amplifier consumes 1.44 µW, and achieves the input referred noise of 3.89 µVrms The calculated NEF is 18.07, while the corresponding to common-mode rejection ratio (CMRR) is 87.72 dB. The device achieves low-noise, low-power and appropriate CMRR, which provides a reference for the design of biomedical instrumentation amplifier.
Related Links	https://iopscience.iop.org/article/10.1088/1742-6596/1907/1/012002/pdf
ISSN	17426588
e-ISSN	17426596
DOI	10.1088/1742-6596/1907/1/012002
Journal	Journal of Physics: Conference Series
Issue Number	1
Volume Number	1907
Language	English
Publisher	IOP Publishing
Publisher Date	2021-05-01
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics: Conference Series Nuclear Energy and Engineering Low Noise Low Power
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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