A Frequency Shaping Neural Recorder With 3 pF Input Capacitance and 11 Plus 4.5 Bits Dynamic Range

@article{Xu2014AFS,
  title={A Frequency Shaping Neural Recorder With 3 pF Input Capacitance and 11 Plus 4.5 Bits Dynamic Range},
  author={Jian Xu and Tong Wu and Wentai Liu and Zhi Yang},
  journal={IEEE Transactions on Biomedical Circuits and Systems},
  year={2014},
  volume={8},
  pages={510-527}
}
This paper presents a frequency-shaping (FS) neural recording architecture and its implementation in a 0.13 μm CMOS process. Compared with its conventional counterpart, the proposed architecture inherently rejects electrode offset, increases input impedance 5-10 fold, compresses neural data dynamic range (DR) by 4.5-bit, simultaneously records local field potentials (LFPs) and extracellular spikes, and is more suitable for long-term recording experiments. Measured at a 40 kHz sampling clock and… CONTINUE READING

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