Dallas, Tex.Silicon Laboratories Inc. expanded its 2500VRMS digital isolator product line with four-channel devices that use chip-scale transformers fabricated using CMOS technology to deliver isolators that the company claims are one-third the size of optocouplers.
The product family consists of the Si8440, Si8441, and Si8442, all of which are offered in a 16-pin wide-body SOIC that is pin-compatible with competing devices. The Si8440 offers four forward channels, the Si8441 offers three forward channels and one reverse channel, and the Si8442 offers two forward channels and two reverse channels.
The Si8440, Si8441 and Si8442 digital isolators are said to offer 50% faster data rates than existing digital isolators and consume less than 12-mA per channel at 100-Mbits/s, making them suitable for applications such as switch mode power supplies, Ethernet/CAN networks and isolated analog data acquisition.
The digital isolators employ an RF encoding/decoding scheme that provides an isolated data path and doesn't require initialization.
The Si8440, Si8441 and Si8442 digital isolators are fully specification-compliant with Underwriters Laboratories UL1577 (USA), VDE Testing and Certification Institute VDE60747-5-2 (Europe) and CSA's Component Acceptance Service CSA#5A (Canada).
Pricing begins at $2.44 in 1,000-unit quantities. Samples are available now and production is scheduled for the second quarter of 2006.
Silicon Laboratories Inc., 1-512-416-8500, www.silabs.com