High-Accuracy Impedance Read-out Circuit for BIA-type Biomedical Sensors
| Autor: | Yu-Cheng Lin, Pang-Yen Lou, Chua-Chin Wang, I-Yu Huang, Chen Guan-Ru, Tsung-Yi Tsai, Tzung-Je Lee |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
0209 industrial biotechnology Applied Mathematics Phase error 02 engineering and technology Type (model theory) Topology Noise (electronics) law.invention 020901 industrial engineering & automation law Signal Processing Hardware_INTEGRATEDCIRCUITS Range (statistics) Operational amplifier Biomedical sensors Cmos process Electrical impedance |
| Zdroj: | Circuits, Systems, and Signal Processing. 40:4187-4195 |
| ISSN: | 1531-5878 0278-081X |
| DOI: | 10.1007/s00034-021-01670-4 |
| Popis: | An impedance read-out circuit with high accuracy implemented using a TSMC 0.18 um mixed-signal CMOS process for BIA-type (bio-electrical impedance analysis) sensors to detect biomarkers is proposed in this investigation. In addition to proposing the impedance estimation circuit, the associated analytic proof is also disclosed. Using a high-order approximation model and high noise rejection capability by the addition of OPAs (operational amplifiers), the proposed system demonstrates a solution with high accuracy in terms of the maximum impedance error ( $$\mathrm |
| Databáze: | OpenAIRE |
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