Hello,
I designed a PLC modem using F28069.
At the start of the card, the microcontroller become very hot and consume 1.5 Amp. When i isolated the ADC bloc, there were no problem and the card consume only
130 mAmp but the bloc ADC is defective. I thought that the problem is form the ADC bloc, so i changed a new microcontroller and at the biginnig i isolated this bloc, but the sme problem apears,
Who know what can be the source of this problem??
By default the internal bandgap is chosen to generate the reference voltage for the ADC, and in my design i used the external mode, this can be the source of the poblem???
Hichem