Key result
An ultralow-power analog front end for ECG acquisition using multifrequency chopping achieved an input-referred noise voltage density of 130 nV/rtHz while consuming 360 nA per channel.
Population
Hardware design for ECG signal acquisition
Design
Other
Authors
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May enable prolonged wearable ECG monitoring; leaves open clinical validation and integration.
The proposed multifrequency chopping technique enables an ultralow-power, low-noise analog front end for ECG signal acquisition.
Khatavkar et al. (2019) studied ECG signal acquisition. Multifrequency chopping technique in a two-channel AFE was evaluated on Input-referred noise voltage density and power consumption. An ultralow-power analog front end for ECG acquisition using multifrequency chopping achieved an input-referred noise voltage density of 130 nV/rtHz while consuming 360 nA per channel.
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