50nW Opamp-Less ΔΣ-Modulated Bioimpedance Spectrum Analyzer for Electrochemical Brain Interfacing.
Maged ElAnsaryNima SoltaniHossein KassiriRuben MachadoSuzie DufourPeter L. CarlenMichael ThompsonRoman GenovPublished in: IEEE J. Solid State Circuits (2020)