Analog Devices ADuM124x dual-channel digital isolators

Analog Devices’ ADuM124x dual-channel digital isolators are micropower devices based on iCoupler technology. Combining high-speed CMOS and monolithic air core transformer technologies, the isolation components are said to provide high performance yet consume low power.

The series of dual, 3.75 kVrms digital isolation devices operate with supplies as low as 2.25 V and typically consume a minimal current of less than 6 μA per channel at data rates below 20 kbps.

All models provide low pulse width distortion (<8 ns) and an input glitch filter for extraneous noise disturbance protection. They operate with an independent supply voltage on either side (between 2.25 and 3.6 V), providing compatibility with lower voltage systems and enabling voltage level translation functionality across the isolation barrier.

In the absence of input power, the products default to a predetermined output logic state: the ADuM1240 and ADuM1241 default to high output, and the ADuM1245 and ADuM1246 default to low output.