Why the study?
Dry electrodes for wearable ECG monitoring have ultra-high source impedance and electrode offset, making traditional chopper amplifiers difficult to apply.
Design
Other
Authors
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May enable comfortable long-term ECG monitoring; leaves open clinical validation in larger cohorts.
A novel chopper amplifier topology demonstrates ultra-high input impedance and extended electrode offset handling, enabling better performance for wearable dry electrode ECG monitoring.
Xu et al. (2020) studied this question.
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