The hottest new technologies and the latest design techniques to help you work efficiently and effectively. The techniques don't do away with the need to design boards for testability, however. Although they don't have the glamour of CPUs, memories, or sophisticated peripheral ICs, supervisory ICs perform unseen yet critical tasks in reset, memory protection, and watchdog functions. You have to choose among a wide variety of ICs and levels of functional integration, and you must decide what level of confidence you need in your watchdog operation. Galvanic, or electrical, isolation is a well-established technique for noise reduction and works best in computer and industrial systems in which noise can seriously affect data transfer.
Isolation removes ground-loop currents and their associated noise voltages from data lines.
A new generation of wideband amplifiers and multipliers allows you to build state-variable active filters that operate beyond the kilohertz region into the megahertz region. Siu, Elantec Corp Design Ideas Quick, innovative design solutions to real-world problems. EDN is a registered trademark of Reed Properties Inc, used under license.