The XTR117 is a
precision current output converter designed to transmit
analog 4-mA-to-20-mA signals over an industry-standard
current loop. The device provides accurate current scaling
and output current limit functions.The on-chip voltage regulator
(5 V) can be used to power external circuitry. A current
return pin (I RET) senses any current used in
external circuitry to provide an accurate control of the
output current.The XTR117 is a
fundamental building block of smart sensors using
4-mA-to-20-mA current transmission. The XTR117 is specified for operation over the extended industrial
temperature range, –40°C to +125°C.