# A 13.9-nA ECG Amplifier Achieving 0.86/0.99 NEF/PEF Using AC-Coupled OTA-Stacking

> Research article (IEEE Journal of Solid-State Circuits, 2019) · cited 76× · AI/ML

**Wikidata**: [openalex:W2995977659](https://www.wikidata.org/wiki/openalex:W2995977659)  
**Source**: https://4ort.xyz/entity/a-13-9-na-ecg-amplifier-achieving-0-86-0-99-nef-pef-using-ac-coupled-ota-stacking