An analog to digital conversion architecture defining a process of converting an analog signal into equivalent digital signal which uses a method comprising of a set of functional units, each capable of performing parametric analog to digital conversion, connected in special arrangement such that each functional unit receives as input a set of parameters which are directly connected to output bits produced by a subset of functional units which are assigned to produce bits of higher significance. The method of analog to digital conversion wherein a function that defines the relationship between the input parameters, analog input value, a given reference value and a set of output bits can be implemented in a single device hence largely simplifying the analog to digital conversion process and making conversion faster and more efficient.