The Texas Instruments XTR116 are precision current output converters designed to transmit analog 4-to-20mA signals over an industry standard current loop. They provide accurate current scaling and output current limit functions. This device is a fundamental building block of smart sensors using 4-to-20mA current transmission.

LOW QUIESCENT CURRENT: 200μA
5V REGULATOR FOR EXTERNAL CIRCUITS
V REF FOR SENSOR EXCITATION:
XTR115: 2.5V
XTR116: 4.096V
LOW SPAN ERROR: 0.05%
LOW NONLINEARITY ERROR: 0.003%
WIDE LOOP SUPPLY RANGE: 7.5V to 36V
SO-8 PACKAGE

4mA-to-20mA Current-Loop Communication

Current loop systems are used in electrically noisy industrial environments for sending analogue sensor data over long distances of 300m or more.