Abstract

This paper proposes a single power supply operated front-end AC coupling biopotential amplifier without reference electrode for portable electrocardiogram (ECG) with dual mode input for common-mode signal and common mode DC, which can effectively improve the Common Mode Rejection Ratio (CMRR) and the common mode impedance operating on a single power supply and therefore simplifying the circuit design. The proposed circuit design has a gain of 60 dB and a single supply of +5V achieves a CMRR over 130dB at 60Hz without any trimming. Actually, in comparison between ECG without Driven Right Leg (DRL) circuit and ECG with DRL circuit, the former has a built in lead-1 ECG for better signal to noise ratio. This result is also valid for portable ECG measurement.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.