Description
® XTR XTR 114 112 XTR112 XTR114 4-20mA CURRENT TRANSMITTERS with Sensor Excitation and Linearization .
The XTR112 and XTR114 are monolithic 4-20mA, two-wire current transmitters.
Features
* q LOW UNADJUSTED ERROR q PRECISION CURRENT SOURCES XTR112: Two 250µA XTR114: Two 100µA q RTD OR BRIDGE EXCITATION q LINEARIZATION q TWO OR THREE-WIRE RTD OPERATION q LOW OFFSET DRIFT: 0.4µV/°C q LOW OUTPUT CURRENT NOISE: 30nAp-p q HIGH PSR: 110dB min q HIGH CMR: 86dB min q WIDE SUPPLY RANGE: 7.5V TO
Applications
* q q q q INDUSTRIAL PROCESS CONTROL FACTORY AUTOMATION SCADA REMOTE DATA ACQUISITION REMOTE TEMPERATURE AND PRESSURE TRANSDUCERS
Pt1000 NONLINEARITY CORRECTION USING XTR112 and XTR114 5 4 Nonlinearity (%) 3 2 1 0
* 1
* 200°C Process Temperature (°C) +850°C
Uncorrected RTD Nonlinearity