A Common-Mode-Interference Tolerant ECG Recording Front End Without Additional Circuits

IEEE Sensors Magazine 2026

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Authors: Jimin Koo, Yoontae Jung, Sohmyung Ha, Minkyu Je
DOI: 10.1109/sem.2025.3647605
Cited by: 0
References: 2

Abstract

This work presents a low-power ECG recording front-end that achieves tolerance to common-mode interference (CMI) without additional circuit overhead by employing a proposed internal capacitor flipping (ICF) technique. This technique inherently suppresses large CMI by reusing the input and feedback capacitors within a capacitively coupled delta-sigma modulator architecture. Fabricated in 180-nm CMOS, the front-end consumes 6μW, tolerates 60-Hz CMI up to 34 Vpp, and records ECG signals using two electrodes.

Fields of Study & Subjects

Analog and Mixed-Signal Circuit Design ECG Monitoring and Analysis Wireless Body Area Networks

Publication details

Journal / source
IEEE Sensors Magazine
Volume
1
Issue
1
Pages
27–28
Publication date
1 January 2026
Language
EN