Analog Devices is expanding its portfolio of digital isolation products with what it claims is the industry’s smallest isolated dc-to-dc converter. Offering a 5-kV rms (root-mean square) isolation rating in a 10-mm × 10-mm package, the ADuM6000 is a 0.5 watt device that integrates ADI’s iCoupler digital isolation technology and and isoPower dc-to-dc converter.
ADI’s iCoupler technology is based on chip-scale transformers, rather than the LEDs and photodiodes used in optocouplers. Transformers can support higher data rates and lower power consumption, and are more stable over life as compared to LEDs and photodiodes. By fabricating the transformers directly on-chip using wafer-level processing, iCoupler channels can be integrated with each other and other semiconductor functions at lower cost.
Safety is a key requirement in medical and industrial designs, and the ADuM6000 protects the device and end users from exposure to voltage levels that could compromise safety and reliability. The new digital isolator also allows designers to free up valuable circuit-board real estate while eliminating the time-consuming step of securing medical or other safety approvals (such as IEC-60601-1).
Also now available are the ADuM620x series of dual-channel digital isolators that feature isoPower dc-to-dc converter technology and a 5-kV rms isolation rating. The ADuM620x series includes the ADuM6200ADuM6200, ADuM6201ADuM6201 and ADuM620ADuM6202 digital isolation products that differ by channel configuration.