Analogue current quantizer architectures for implementing integer division-like functions

Abstract

An analogue current quantization circuit that can implement the integer division by a constant number, the integer floor function, and a function generator with a parametric ladder-like output is presented in this paper. These functions can be exploited in Analogue-to-Digital Converters (ADCs), fuzzy logic and neural networks as well as in signal processing units. Various architecture alternatives are presented which achieve different integer division resolution ranging from 1:2 to 1:65536 or more. High speed and low voltage supply are achieved in ADCs that are based on this divider due to the usage of current mode techniques. Nevertheless, the most important advantages of the presented architectures are the very low power consumption and die area that they require.