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 | |
Online | 02 Jul 2024 |
Publication process dates | |
Accepted | 02 Jul 2024 |
Deposited | 05 Sep 2024 |
Output status | Published |
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 |
https://repository.mdx.ac.uk/item/16987y
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