STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 Ficha De Dados

   

   

   

84/139

 Doc ID 17713 Rev 1

As can be seen in the A2D block diagram, in order to report some voltages in the A2D 
working range, they are scaled with a resistor divider before the conversion.

Here below are reported the resistor voltage divider specifications:

         

R

Supply_ratio

V

Supply

 divider ratio

-

1/15

-

R

SupplyInt_ratio

V

Supply

 

Int

 divider ratio

-

1/15

-

R

V3V3_ratio

V

3v3 

divider ratio

-

1/2

-