Wu, Y;
Jiang, D;
Langlois, P;
Bayford, R;
Demosthenous, A;
(2019)
A power-efficient current generator with common mode signal autozero feedback for bioimpedance measurement applications.
In: Miyanaga, Yoshikazu and Kiya, Hitoshi and Gabbouj, Moncef, (eds.)
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2019).
IEEE: New York, USA.
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Abstract
This paper describes the design of fully differential sine pulse-width-modulation (SPWM) wave current generator for bioimpedance measurement applications. The current generator has been designed in a 0.18-µm CMOS technology. Its analog front-end operates from ±1.65 V and has a current consumption of + + ( ×. ) where is the output current and is the operating frequency. It can provide outputs from to of SPWM current up to 98 kHz with a maximum voltage compliance of ±1.25 V. Using linear current feedback, the current generator has a designed transconductance of /. Feedback also enables cancellation of common mode signals and a high output impedance.
| Type: | Proceedings paper |
|---|---|
| Title: | A power-efficient current generator with common mode signal autozero feedback for bioimpedance measurement applications |
| Event: | International Symposium on Circuits and Systems (ISCAS 2019), 26-29 May 2019, Sapporo, Japan |
| ISBN-13: | 9781728103976 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ISCAS.2019.8702546 |
| Publisher version: | https://doi.org/10.1109/ISCAS.2019.8702546 |
| 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: | Generators, Voltage measurement, Current measurement, Impedance, Bioimpedance, Transconductance, Voltage control |
| 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/10077822 |
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