284J as a Current-Loop Receiver

Isolated 4-20mA Analog Interfacing Low-Cost Protection from kV Spikes

The 284J Isolation Amplifier, announced in the last issue of this Journal, provides a key to measuring analog quantities transmitted via 4-20mA current loops over substantial distances through harsh environments with reasonable accuracies and high common-mode rejection. Both the amplifier and the circuitry that its output serves are protected from kV-level common-mode transients. Read full article



Jim Maxwell