Towards a Ternary Sigma-Delta Modulated Processor: Adder and Integrator

Abstract

Sigma delta modulated systems have a number of very appealing properties, and are therefore heavily used in analog to digital converters, amplifiers and as modulators in communication systems. This paper presents new results which show that they may also be useful for general purpose arithmetic computing. The paper introduces ternary (i.e. +1, 0 or -1) sigma delta modulated adders and integrators. Simulations show that these new structures have very promising performance.