Noise canceling chopper stabilized front-end for electrochemical biosensors with improved dynamic range

@article{Balasubramanian2012NoiseCC,
  title={Noise canceling chopper stabilized front-end for electrochemical biosensors with improved dynamic range},
  author={Viswanathan Balasubramanian and Pierre-François Ruedi and Christian C. Enz},
  journal={2012 IEEE International Symposium on Circuits and Systems},
  year={2012},
  pages={2215-2218}
}
This paper presents a front-end circuit for electrochemical biosensors used in applications like DNA sensing. Novelty in this work lies in the front-end architecture which uses noise canceling (NC) combined with chopper stabilization (CS) for rejecting 1/f noise and to our knowledge, a front-end using the principle of noise canceling for 1/f noise rejection has not been reported. Motivation for using this front-end are: 1) The circuit exhibits low noise performance with its sensitivity not… CONTINUE READING

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