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Noise model, including contributions from the op-amp, DAC, DRV2700, and modulation input. The element labeled CLP consists of a 47 nF capacitor in parallel with a 10 μF capacitor connected to ground through a switch, such that the corner frequency of the filter can be changed depending on the mode of operation (see text). Though not drawn in the figure, we also consider the Johnson noise contributions from all resistors.
