Hi 2 all, Actually iam doing a project where i have to convert the analog voltage to digital and read it's output. I have done the program for generating the sclock and ss/ for ADC(Max187) and getting the serial 12 bit data output successfully.... But iam not able to convert this serial 12 bit data to parallel using 89C51 controller... Can anyone help me by giving some hints or a sample program for it please....
Now, why would you select a 12-bit ADC if you only want a 4-bit conversion?
If having 4 bits and full range is 0 to 5V, then each step would represent 0,33V, so one tick up or down is more than the allowed tolerance for the 5V supply. 4 bits would also be unsuitable for measuring battery voltages, unless you don't measure relative to ground but have an offset voltage you measure against.