Inside an isolated RS-485 transceiver | EDN

http://www.edn.com/design/analog/4458434/Inside-an-isolated-RS-485-transceiver?utm_content=buffer1c35d&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

Over the past decade, legislation has changed and now requires machinery and equipment operating in harsh environments to implement isolation for their data transmission systems. As a result, the trend away from legacy single-channel isolated systems to applications utilizing multi-channel isolation has led to the introduction of new isolation components. Many of these applications involve data communication in telecommunication and industrial networks, medical systems, sensor interfaces, motor control and drive systems, and instrumentation.

This article focuses on isolated digital interfaces conforming to RS-485.