Brendan Cronin

Brendan Cronin
Brendan Cronin

Stories by Brendan Cronin

Designing Intelligent 4–20 mA Transducers

Modern industrial automation applications-such as PLCs, factory process control, and intelligent transmitters-all demand high-performance, low-power components. Current-mode data transmission is no exception. Intelligent 4–20 mA current-mode data transmission is the preferred technique in many industrial automation applications and is a well-established standard for communications between the host computer and smart/intelligent transmitters in harsh factory environments. This article describes intelligent transmitters and explains their need for high-resolution, low-power ADCs, DACs, and isolation devices.