The ADC i am using is 16 bit. Its Output on LCD is 049E.The formula i am using for manually converting it to voltages is V(analog)= V ref x (1/2n)xdecimal equiavalent of hexadecimal. is this correct one. and V ref what value we have to use, here i am attaching ADC details.
Your reference here is Vdd. So V = Vdd x ADCcount / 2n
You can always use the ADC_CountsTo_mVolts() or the one for uV, V,
to do the conversion for you.