A Noise-Efficient Neural Recording Amplifier Using Discrete-Time Parametric Amplification

Kyojin Choo
2018
Article

Résumé

This letter proposes an instrumentation amplifier for neural recording applications whose measured noise efficiency factor (NEF) is 2.2. A discrete-time parametric amplifier is adopted as a preamplification stage to lower the input-referred noise, thus improving the NEF. The additional induced sampling noise is minimized by oversampling, and the power overhead for switching is minimized by adopting an 8-phase soft-charging technique.

Source officielle

https://infoscience.epfl.ch/record/293127?ln=fr

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A Noise-Efficient Neural Recording Amplifier Using Discrete-Time Parametric Amplification

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