A current DAC based current generator with fourth-order current-mode filter for electrical impedance tomography
Conference paper
Li, J., Wu, Y., Jiang, D., Bayford, R. and Demosthenous, A. 2024. A current DAC based current generator with fourth-order current-mode filter for electrical impedance tomography. 2024 IEEE International Symposium on Circuits and Systems. Singapore, Singapore 19 - 22 May 2024 IEEE. pp. 1-4 https://doi.org/10.1109/iscas58744.2024.10558679
| Type | Conference paper |
|---|---|
| Title | A current DAC based current generator with fourth-order current-mode filter for electrical impedance tomography |
| Authors | Li, J., Wu, Y., Jiang, D., Bayford, R. and Demosthenous, A. |
| Abstract | The current generator is one of the most essential parts in electrical impedance tomography (EIT) systems. State-of-art current generators suffer from the trade-off between current efficiency, linearity, output impedance and well-controlled output current level. To address these challenges, a current DAC based current generator with a fourth-order current-mode filter is proposed. The current generator was designed and simulated in a 65 nm CMOS process. By utilizing the proposed current-mode filter and the master and slave current DAC, the current generator achieves a well-controlled output current leveling with 255 tunning steps, 83.9% current efficiency, 0.11% THD at 1 mA pp output current and 2 MΩ output impedance at 500 kHz. |
| Sustainable Development Goals | 3 Good health and well-being |
| Middlesex University Theme | Health & Wellbeing |
| Conference | 2024 IEEE International Symposium on Circuits and Systems |
| Page range | 1-4 |
| Proceedings Title | 2024 IEEE International Symposium on Circuits and Systems (ISCAS) |
| ISSN | 0271-4302 |
| Electronic | 2158-1525 |
| ISBN | |
| Electronic | 9798350330991 |
| Paperback | 9798350331004 |
| Publisher | IEEE |
| Publication dates | |
| 19 May 2024 | |
| Online | 02 Jul 2024 |
| Publication process dates | |
| Accepted | 15 Jan 2024 |
| Deposited | 05 Sep 2024 |
| Output status | Published |
| Accepted author manuscript | File Access Level Open |
| Copyright Statement | © 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| Digital Object Identifier (DOI) | https://doi.org/10.1109/iscas58744.2024.10558679 |
| Web address (URL) of conference proceedings | http://doi.org/10.1109/ISCAS58744.2024 |
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