利用右腿驱动技术的心电信号模拟前端设计

doi:10.3969/j.issn.1001-2400.2016.04.029

Abstract

Abstract:

Under the condition of an un-shielding room, electrocardiogram (ECG) signal detection is a weak signal detection process with a strong common mode interference. In order to improve the performance of common mode rejection of the circuit, a driven-right-leg (DRL) circuit is often utilized. In this paper, a high performance ECG amplifier is proposed. The programmable gain amplifier (PGA) circuit and DRL circuit are applied at this analog front end. The PGA is utilized for ECG signal amplification, with the programmable gain set at 1, 2, 3, 4, 6, 8, 12. The DRL circuit is used to reduce common-mode interference.

Key words: electroence phalograph, amplifier, driven-right-leg, biopotential measurement, CMRR

YANG Zheng;WANG Jingmin;ZHU Zhangming;YANG Yintang. ECG front-end subsystem with the driven-right-leg circuit[J].Journal of Xidian University, 2016, 43(4): 166-171.

References

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ECG front-end subsystem with the driven-right-leg circuit

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