WU, Y;
Langlois, P;
Jiang, D;
Bayford, R;
Demosthenous, AC;
(2017)
A CMOS current driver with built-in common-mode signal reduction capability for EIT.
In:
Proceedings of ESSCIRC 2017 - 43rd IEEE European Solid State Circuits Conference.
(pp. pp. 227-230).
IEEE: Leuven, Belgium.
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Abstract
This paper presents an integrated fully differential current driver for wearable multi-frequency electrical impedance tomography (EIT). The integrated circuit (IC) comprises a wideband current driver (up to 500 kHz) functioning as the master for current sourcing, and a differential voltage receiver with common-mode feedback configuration as the slave for current sinking. The IC is fabricated in a 0.18-µm CMOS technology. It operates from ±1.65 V power supplies and occupies a total die area of less than 0.05 mm2 . The current driver has a measured output impedance of 750 kΩ at 500 kHz and provides a common-mode signal reduction of 32 dB at 500 kHz. The application of the IC in a wearable EIT lung monitoring system is presented.
| Type: | Proceedings paper |
|---|---|
| Title: | A CMOS current driver with built-in common-mode signal reduction capability for EIT |
| Event: | ESSCIRC 2017 - 43rd IEEE European Solid State Circuits Conference |
| Location: | Leuven, Belgium |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ESSCIRC.2017.8094567 |
| Publisher version: | http://doi.org/10.1109/ESSCIRC.2017.8094567 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Tomography, Integrated circuits, Impedance, Current measurement, Electrodes, Lungs, Voltage measurement |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10041533 |
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