From this point on, the way the signal is treated is similar to that of the voltage sensor. First, the output is isolated from the rest of the circuit by a voltage follower, and then it is finally fed into a filtering capacitor where any noise spikes are rejected. Once the signal has been filter out from potential noise, it can finally be fed into the AD converter pin of the microcontroller to be implemented in the MPPT. [43] Some of the features of the ACS712 Current Sensor from Allegro Microsystems are: