26.1 A 4.5mm2 Multimodal Biosensing SoC for PPG, ECG, BIOZ and GSR Acquisition in Consumer Wearable Devices. - Yun-Shiang Shu; Zhi-Xin Chen; Yu-Hong Lin; Su-Hao Wu; Wei-Hsiang Huang; Albert Yen-Chih Chiou; Chang-Yang Huang; Hung-Yi Hsieh; Fan-Wei Liao; Teng-Feng Zou; Ping Chen (ISSCC, 2020)