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| Analog Devices Extends Its Family of iCoupler Digital Isolators Analog Devices, Inc. is extending its family of iCoupler digital isolators with the industry's first products that provide both data and power isolation in a single package. This advancement provides designers of industrial, instrumentation, and power systems with a simple, low-cost, space-saving alternative. The products incorporate ADI's new proprietary isoPower technology that integrates a micro-power supply with independent signal channels. The ADuM5240, ADuM5241 and ADuM5242 are dual-channel isolators incorporating isoPower technology. These new products, provided in 8-lead SOIC (small-outline integrated circuit) packaging, integrate an isolated power supply with two digital signal channels to create a complete isolation solution for low-power applications found in factory automation equipment, instrumentation and secondary control power supplies. In such applications, where designers are under great pressure to reduce size, cost and development time, the ADuM524x product family simplifies the challenge of isolated designs with a single-component solution. As with all iCoupler products, these new devices will carry regulatory safety approvals from the major North American and European agencies upon product release. The ADuM524x products incorporate the isoPower technology, which integrates an isolated DC/DC converter with two channels of digital signal isolation in an 8-lead SOIC. Intended for low-power applications, the integrated DC/DC converter provides up to 50 mW of isolated, regulated power at 5 V. The ADuM524x devices operate with a supply voltage ranging from 2.7 V to 5.5 V with the internal DC/DC converter enabled at supply voltages above 4.5 V. The signal channels have excellent timing specifications with propagation delay less than 55 nanoseconds and channel-to-channel matching better than three nanoseconds. All three ADuM24x products carry a 2.5 KV isolation rating. Each product varies by the directionality of each channel. The ADuM5240 has two signal outputs on the same side as the power output. The ADuM5241, with signal channels in each direction, is suited for bi-directional communications, such as an RS-232 transceiver, that require isolated power for interface electronics. The ADuM5242, with the two signal outputs on the same side as the power input, is suited for power supply applications that employ secondary side control and require isolated power to initiate start-up. write your comments about the article :: © 2006 Computing News :: home page |