A 0.18μm front end for ECG/EEG/neural sensor interface
A 1.8V 0.18μm CMOS analog front end consists of a chopper stabilized low noise preamplifier, a capacitive negative feedback gain stage and a variable gain amplifier with digital tunable low pass filter bank is presented. With optimized gain distribution, the analog front end eliminates the 1/f noise...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/99012 http://hdl.handle.net/10220/12756 |
| _version_ | 1826113880194023424 |
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| author | Han, Dong Zheng, Yuanjin Je, Minkyu |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Han, Dong Zheng, Yuanjin Je, Minkyu |
| author_sort | Han, Dong |
| collection | NTU |
| description | A 1.8V 0.18μm CMOS analog front end consists of a chopper stabilized low noise preamplifier, a capacitive negative feedback gain stage and a variable gain amplifier with digital tunable low pass filter bank is presented. With optimized gain distribution, the analog front end eliminates the 1/f noise by chopper stabilization without the DC offset cancellation servo loops in conventional chopper amplifier, combines the advantages from chopper stabilization and capacitive negative feedback to achieve both low 1/f noise and compact structure. The simulation results show that the proposed analog front end achieves 32nV/Hz1/2 input referred thermal noise floor with 1.8μA total current from a 1.8V supply, 20kHz chopping frequency, and in-band gain of 400 and 2000, is suitable for electrocardiograph, electroencephalograph, and neural spike recording applications. |
| first_indexed | 2024-10-01T03:30:28Z |
| format | Conference Paper |
| id | ntu-10356/99012 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:30:28Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/990122020-03-07T13:24:49Z A 0.18μm front end for ECG/EEG/neural sensor interface Han, Dong Zheng, Yuanjin Je, Minkyu School of Electrical and Electronic Engineering IEEE International Symposium on Radio-Frequency Integration Technology (2012 : Singapore) DRNTU::Engineering::Electrical and electronic engineering A 1.8V 0.18μm CMOS analog front end consists of a chopper stabilized low noise preamplifier, a capacitive negative feedback gain stage and a variable gain amplifier with digital tunable low pass filter bank is presented. With optimized gain distribution, the analog front end eliminates the 1/f noise by chopper stabilization without the DC offset cancellation servo loops in conventional chopper amplifier, combines the advantages from chopper stabilization and capacitive negative feedback to achieve both low 1/f noise and compact structure. The simulation results show that the proposed analog front end achieves 32nV/Hz1/2 input referred thermal noise floor with 1.8μA total current from a 1.8V supply, 20kHz chopping frequency, and in-band gain of 400 and 2000, is suitable for electrocardiograph, electroencephalograph, and neural spike recording applications. 2013-08-01T03:53:53Z 2019-12-06T20:02:19Z 2013-08-01T03:53:53Z 2019-12-06T20:02:19Z 2012 2012 Conference Paper Han, D., Zheng, Y.,& Je, M. (2012). A 0.18μm front end for ECG/EEG/neural sensor interface. 2012 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT),107-109. https://hdl.handle.net/10356/99012 http://hdl.handle.net/10220/12756 10.1109/RFIT.2012.6401629 en |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Han, Dong Zheng, Yuanjin Je, Minkyu A 0.18μm front end for ECG/EEG/neural sensor interface |
| title | A 0.18μm front end for ECG/EEG/neural sensor interface |
| title_full | A 0.18μm front end for ECG/EEG/neural sensor interface |
| title_fullStr | A 0.18μm front end for ECG/EEG/neural sensor interface |
| title_full_unstemmed | A 0.18μm front end for ECG/EEG/neural sensor interface |
| title_short | A 0.18μm front end for ECG/EEG/neural sensor interface |
| title_sort | 0 18μm front end for ecg eeg neural sensor interface |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/99012 http://hdl.handle.net/10220/12756 |
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