Back to Search
Start Over
A 24.8-μW Biopotential Amplifier Tolerant to 15-VPP Common-Mode Interference for Two-Electrode ECG Recording in 180-nm CMOS.
- Source :
- IEEE Journal of Solid-State Circuits; Feb2021, Vol. 56 Issue 2, p591-600, 10p
- Publication Year :
- 2021
-
Abstract
- This article presents a biopotential amplifier that has a large tolerance to common-mode interference (CMI) for a reliable two-electrode electrocardiogram (ECG) recording. To withstand large CMI without affecting the ECG signal, a common-mode charge pump (CMCP) that absorbs displacement current from the CMI and keeps the common-mode input within the desired range is proposed. This article also analyzes the effects of CMCP under non-ideal conditions and provides design guidelines for improved signal quality. A prototype chip fabricated in 180-nm CMOS achieves CMI tolerance of 15 $\text{V}_{\text {PP}}$ at 60 Hz while consuming 24.8 $\mu \text{W}$ from a 1.2-V supply. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189200
- Volume :
- 56
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- IEEE Journal of Solid-State Circuits
- Publication Type :
- Academic Journal
- Accession number :
- 148496571
- Full Text :
- https://doi.org/10.1109/JSSC.2020.3005768