4-20 mA is a robust, reliable communication protocol that has been used widely in industrial settings for many years. Analog Devices’ 4-20 mA portfolio for industrial systems offers a high level of accuracy, integration, and flexibility, with guaranteed specifications and a long life cycle not found in alternative products. Our many field proven reference designs, example circuit diagrams, and application notes ease the designers’ task of implementing customizable, 4-20 mA communications systems, while the reliability, robustness, and considerable control functionality of our drivers, DACs, ADCs, and loop interfaces address a host of system challenges. Analog Devices leads the way in industrial communications with our ever-broadening 4-20 mA product line.