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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: IEEE Trans Biomed Circuits Syst. 2015 Sep 16;10(3):654–667. doi: 10.1109/TBCAS.2015.2453791

Fig. 10.

Fig. 10

Measured frequency spectrum at the output of (a) ΔΣM and (b) “ΔΣM + decimator” for a 500Hz, ±900nA sinusoidal input current. (c) Measured SNR and SNDR as a function of the normalized input current amplitude (Iref = 1.2µA).