The ADuM541X and ADuM641X are quad-channel digital isolators with isoPower® and integrated, isolated DC-to-DC converters. Based on the Analog Devices iCoupler® technology, the DC-to-DC converter provides regulated, isolated power that is adjustable between 3.15 V and 5.25 V. These isolators are ideal in I/O modules for process control and smart energy meters. They are offered in a small, 24-lead ASOP/SSOP package and have agency certification of UL, CSA, and VDE.