A differential capacitive sensor is interfaced using an op-amp drcuit shown in the figure below. The parallei plate approximation can be used for the sensor capacitors with D=200 um. L=0.000175 as the dimensinns of theensor and x=7.58e 008 as the lateral displacement, accordingly, find the ratio of the total capacitance chan to the ornal capacitance (C) of the sensor? C1 2L C2 U Select one O08e-4

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Differential amplifier

There are two amplifying stages with common degeneration in a differential amplifier.