A pseudodifferential amplifier for bioelectric events with DC-offset compensation using two-wired amplifying electrodes

@article{Degen2006APA,
  title={A pseudodifferential amplifier for bioelectric events with DC-offset compensation using two-wired amplifying electrodes},
  author={Thomas Degen and Heinz J{\"a}ckel},
  journal={IEEE Transactions on Biomedical Engineering},
  year={2006},
  volume={53},
  pages={300-310}
}
Most wired active electrodes reported so far have a gain of one and require at least three wires. This leads to stiff cables, large connectors and additional noise for the amplifier. The theoretical advantages of amplifying the signal on the electrodes right from the source has often been described, however, rarely implemented. This is because a difference in the gain of the electrodes due to component tolerances strongly limits the achievable common mode rejection ratio (CMRR). In this paper… CONTINUE READING
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