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Lowest power digital isolators introduced

Analog Devices has developed the ADuM144x range, which, according to the company, features the industry’s lowest power digital isolators.

Analog Devices' ADuM144x can be powered by as little as 1 μW of power, delivering power levels over 1,000 times lower than optocouplers and competing digital isolators. As a result the ADuM144x range is suitable for green systems that demand high energy efficiency or depend on limited power sources, such as batteries. 

The ADuM144x quad-channel data isolators are available in three different channel configurations with a one-minute isolation safety rating of 2.5 kV rms. They have an operating voltage range of 2.25 V to 3.6 V, further reducing power constraints and providing the lowest isolator operating voltage on the market. Quiescent power supply current at 2.5 V is less than 5 μA per channel, and power supply current at 2 Mbps is less than 380 μA per channel. A power saving mode can reduce current levels to as little as 0.1 μA per channel, resulting in an industry-best 1 μW of total power for the entire isolator. In addition to the significant power savings, the ADuM144x is also available in a 16-lead QSOP package, making it the industry’s smallest quad-channel digital isolators with a 2.5 kV rms isolation rating.


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Energy efficiency  •  Energy storage including Fuel cells