A fully-differential CMOS low-pass notch filter for biosignal measurement devices with high interference rejection

@article{Wang2014AFC,
  title={A fully-differential CMOS low-pass notch filter for biosignal measurement devices with high interference rejection},
  author={Kainan Wang and Chun-hsiang Chang and Marvin Onabajo},
  journal={2014 IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS)},
  year={2014},
  pages={1041-1044}
}
A fifth-order fully-differential CMOS low-pass notch filter (LPNF) with high interference rejection is presented to provide an interface to the instrumentation amplifier (IA) in biopotential and bioimpedance measurement devices. The LPNF employs six operational transconductance amplifiers with differential difference input stage, which have low transconductances in nanosiemens range to enable the use of small capacitors that are feasible for on-chip integration. The filter design was simulated… CONTINUE READING