I have a homework until the next month to choose a DAC or ADC and design it in LTSpice so that it satisfies some parameters (the parameters are not imposed...I choose the values). The problem is I never did something like this before. Can someone point me into the right direction? Give me a list of baby steps to follow maybe. I am completely lost. I know what the ADC or DAC 's role is. I view them more like black boxes.