Ultra Low Power ASIC for R-R Interval Extraction on Wearable Health Monitoring System

This study shows a development of an ultra low power application specific integrated circuit (ASIC) that extracts R-R intervals from electrocardiogram (ECG) data on a human monitoring system. The continuous human monitoring is substantially useful to realize a high quality of life human society especially for elderly people who live alone. However, it is difficult to realize such a system that can operate longtime without maintenances because of its battery limitation. A micro controller unit (MCU) has to be continuously operated to samples the ECG waveform, which is known as one of a power hungry device in the system. In order to reduce the power consumption of the MCU, an ultra low power ASIC for ECG feature extraction is developed for replace a role of MCU to extract the R-R intervals of ECG feature values.