An 8&#x003BC;W Heterodyning Chopper Amplifier for Direct Extraction of 2&#x003BC;V<inf>rms</inf> Neuronal Biomarkers

Abstract

This paper describes a prototype architecture that tracks the power fluctuations in discrete frequency bands for a broad spectrum of neuronal biomarkers. The circuit merges chopper-stabilization with heterodyne signal processing to construct a low-noise amplifier with highly programmable, robust filtering characteristics. It is concluded that in our… (More)

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@article{Denison2008An8H, title={An 8μW Heterodyning Chopper Amplifier for Direct Extraction of 2μVrms Neuronal Biomarkers}, author={Timothy J. Denison and Wesley Santa and R. Jensen and Daniel F. Carlson and G. Molnar and A.-T. Avestruz}, journal={2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers}, year={2008}, pages={162-603} }