Hwang Sungkil, Trakimas Michael, Sonkusale Sameer
Nanoscale Integrated Sensors and Circuits Laboratory, Tufts University, Medford, MA 02155, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:5262-5. doi: 10.1109/IEMBS.2010.5626292.
An asynchronous electrocardiogram (ECG) acquisition system is presented for wearable ambulatory monitoring. The proposed system consists of a low noise front-end amplifier (AFE) with tunable bandwidth, an asynchronous analog-to-digital converter (ADC), and digital signal processing (DSP). Data compression is achieved by the inherent signal dependent sampling rate of the asynchronous architecture. This makes the system attractive for compact wearable ECG monitoring applications. The AFE and ADC were fabricated in a 0.18 microm CMOS technology and consume a total of 79 microW. Measured results demonstrating ECG monitoring are presented.
本文提出了一种用于可穿戴动态监测的异步心电图（ECG）采集系统。该系统由一个具有可调带宽的低噪声前端放大器（AFE）、一个异步模数转换器（ADC）和数字信号处理（DSP）组成。通过异步架构固有的信号相关采样率实现数据压缩。这使得该系统对于紧凑的可穿戴ECG监测应用具有吸引力。AFE和ADC采用0.18微米CMOS技术制造，总功耗为79微瓦。给出了演示ECG监测的测量结果。
