A LOW POWER ANALOG FRONT-END FOR PORTABLE BIOPOTENTIAL ACQUISITION SYSTEMS

作者：Qin, Wenhui; Ke, Keren; Wang, Yanchao; Qin, Yajie; Yi, Ting^*; Hong, Zhiliang

来源：IEEE International Conference on Solid-State and Integrated Circuit Technology, Guilin, PEOPLES R CHINA, 2014-10-28 To 2014-10-31.

An ultra-low power analog front end is presented to capture ExG (including ECG, EEG and EMG) signals. It consists of a capacitively coupled chopper instrument amplifier, a chopping spike filter and a VGA. Implemented in standard 0.35 mu m CMOS technology, this analog front end occupying 0.54 mm(2) chip area, while consuming only 3.96 mu A from 3.3 V supply. Measurement results show an input-referred noise of 0.8S mu Vrms (20.5-100 Hz), 115dB CMRR, 100dB PSRR, and a noise efficiency factor of 6.48.

• 出版日期2014
• 单位复旦大学; 专用集成电路与系统国家重点实验室