The analog integrator is drifting.
Note that digital integrators will also drift if the input is noisy or derived from an A/D converter as these are inherently noisy. In theory the noise should cancel but it never seems to do in practice.
The analog integrator is drifting.
Note that digital integrators will also drift if the input is noisy or derived from an A/D converter as these are inherently noisy. In theory the noise should cancel but it never seems to do in practice.