A simple A/D-converter of weight integration type and some ratio transducers for cooperative application in digital multimeters and data acquisition systems

An analog-digital (A/D) converter of weight integration type with quasi-optimal (stepwise) weight function and several specially shifted integrated cycles is described. Theoretical and experimental data confirming the high interference resistance of this converter are shown as well as some improvements resulting in an increase in speed. Some ratio transducers of electric circuit and signal parameters applied together with the proposed converter in digital multimeters and data acquisition systems are considered. Some recommendations concerning further advance in the development and application of this converter and these transducers are presented