22.1 A 769μW Battery-Powered Single-Chip SoC With BLE for Multi-Modal Vital Sign Health Patches

Continuous vital-sign monitoring is of paramount importance in remote heath monitoring or rehabilitation environments for chronic diseases. Medical-grade wireless and wearable bio-sensor systems that can be used at home offer a much more attractive solution than hospital-based monitoring systems. We report an all-in-one battery-powered SoC designed for low-cost single-use health patches (Fig. 22.1.1), allowing continuous monitoring in a home setting to improve patient comfort and reduce cost of care by, e.g., reducing hospital stays. In addition to medical-grade signal quality, low power consumption is key in such a health patch system, to enable a comfortable form factor with miniature battery size and prolong the operational lifetime to at least several weeks.