A CMOS analog front-end IC for portable EEG/ECG monitoring applications
A new digital programmable CMOS analog front-end (AFE) IC for measuring electroencephalograph or electrocardiogram signals in a portable instrumentation design approach is presented. This includes a new high-performance rail-to-rail instrumentation amplifier (IA) dedicated to the low-power AFE IC. T...
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| Main Authors: | , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
2009
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| 主題: | |
| 在線閱讀: | https://hdl.handle.net/10356/91302 http://hdl.handle.net/10220/4681 |
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| 機構: | Nanyang Technological University |
| 語言: | English |
| 總結: | A new digital programmable CMOS analog front-end (AFE) IC for measuring electroencephalograph or electrocardiogram signals in a portable instrumentation design approach is presented. This includes a new high-performance rail-to-rail instrumentation amplifier (IA) dedicated to the low-power AFE IC. The measurement results have shown that the proposed biomedical AFE IC, with a die size of 4.81 mm2, achieves a maximum stable ac gain of 10 000 V/V, input-referred noise of 0.86 Vrms (0.3 Hz–150 Hz), common-mode rejection ratio of at least 115 dB (0–1 kHz), input-referred dc offset of less than 60 V, input common mode range from 1 5 V to 1.3 V, and current drain of 485 µA (excluding the power dissipation of external clock
oscillator) at a 1.5-V supply using a standard 0.5-µm CMOS process technology. |
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