# 28.3 A 28μW 134dB DR 2<sup>nd</sup>-Order Noise-Shaping Slope Light-to-Digital Converter for Chest PPG Monitoring

> Research article (2021 IEEE International Solid- State Circuits Conference (ISSCC), 2021) · cited 27× · AI/ML

**Wikidata**: [openalex:W3133590970](https://www.wikidata.org/wiki/openalex:W3133590970)  
**Source**: https://4ort.xyz/entity/28-3-a-28w-134db-dr-2-sup-nd-sup-order-noise-shaping-slope-light-to-digital-converter-for-chest-ppg-monitoring