Neshatvar, Nazanin;
Schormans, Matthew;
Jiang, Dai;
Schmitt, Stefan;
Detemple, Peter;
Demosthenous, Andreas;
(2022)
An Implantable Phase Locked Loop MEMS Based Readout System for Heart Transplantation.
IEEE Transactions on Circuits and Systems II: Express Briefs
10.1109/TCSII.2022.3190796.
(In press).
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Abstract
An implantable readout circuit using a MEMS pressure sensor has been designed and implemented to monitor the heart activity after heart transplant surgery. It features a time domain architecture using two identical voltage-controlled oscillators and phase locked loop circuits. The circuit was implemented in a 65 nm CMOS technology with 1 V power supply. It consumes 100 lW power and provides a digital output that is proportional to the analog sensor input with a bandwidth of up to 4 kHz. The SNR of the system is 53 dB. Measurements show the operation of the readout chip with the MEMS sensor.
| Type: | Article |
|---|---|
| Title: | An Implantable Phase Locked Loop MEMS Based Readout System for Heart Transplantation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TCSII.2022.3190796 |
| Publisher version: | http://doi.org/10.1109/TCSII.2022.3190796 |
| 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. |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10152258 |
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