具有传感器激励和线性化的 4-20mA 电流发送器
DESCRIPON
The and XTR114 are monolithic 4-20mA, two-wire current transmitters. They provide complete current excitation for high impedance platinum RTD temperature sensors and bridges, instrumentation amplifier, and current output circuitry on a single integrated circuit. The XTR112 has two 250µA current sources while the XTR114 has two 100µA sources for RTD excitation.
FEATURES
● LOW UNADJUSTED ERROR
● PRECISION CURRENT SOURCES
XTR112: Two 250µA
XTR114: Two 100µA
● RTD OR BRIDGE EXCITATION
● LINEARIZATION
● TWO OR THREE-WIRE RTD OPERATION
● LOW OFFSET DRIFT: 0.4µV/°C
● LOW OUTPUT CURRENT NOISE: 30nAp-p
● HIGH PSR: 110dB min
● HIGH CMR: 86dB min
● WIDE SUPPLY RANGE: 7.5V TO 36V
● SO-14 SOIC PACKAGE
APPLICATIONS
● INDUSTRIAL PROCESS CONTROL
● FACTORY AUTOMATION
● SCADA REMOTE DATA ACQUISITION
● REMOTE TEMPERATURE AND PRESSURE TRANSDUCERS