ANALOG TO DIGITAL CONVERTERS HAVING MULTIPLE UNITS OF MEASUREMENT

摘要

An analog to digital converter capable of providing a digital indication of the analog signal in any of a number of digital units (e.g., inches or meters) and having coarse-fine measuring ability is disclosed. A feedback counter, which operates either in a fast or slow mode depending on the magnitude of the error signal, operates in a single unit system while a display counter operates in alternative unit systems.