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. 2021 Jul 13;15:681085. doi: 10.3389/fnins.2021.681085

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Copyright © 2021 Pérez-Prieto and Delgado-Restituto.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Illustration of the noise folding problem in TDM AFEs. (A) Noise folding problem in multiplexing circuits. (B) Noise folding in multiplexing circuits applying charge sampling techniques. (C) Noise folding in multiplexing circuits applying a narrow-band CDS architecture.