I'm developing an arduino-based board for robot control. I'm using the atmega32u4 and want to use the adc for read sensors. I have realized that the schematic for the arduino uno and other boards of arduino, use an ferrite bead for the LC filter in Avcc instead of the inductor suggested in the datasheet for the avr microcrontrollers. Why they do that?
And the other question is, if i use the suggested inductor of 10uH, it is a 35mA of rated current good enough for that purpuse?
I read in other topics that the inductor have to have a low resistance in DC to avoid a voltaje drop greater that .3 volt.
I want to use this component: