器件名称: XTR106P
功能描述: 4-20mA CURRENT TRANSMITTER with Bridge Excitation and Linearization
文件大小: 272.73KB 共15页
简 介:
XTR
106
XTR106
XTR
106
4-20mA CURRENT TRANSMITTER with Bridge Excitation and Linearization
FEATURES
q LOW TOTAL UNADJUSTED ERROR q 2.5V, 5V BRIDGE EXCITATION REFERENCE q 5.1V REGULATOR OUTPUT q LOW SPAN DRIFT: ±25ppm/°C max q LOW OFFSET DRIFT: 0.25V/°C q HIGH PSR: 110dB min q HIGH CMR: 86dB min q WIDE SUPPLY RANGE: 7.5V to 36V q 14-PIN DIP AND SO-14 SURFACE-MOUNT
APPLICATIONS
q PRESSURE BRIDGE TRANSMITTER q STRAIN GAGE TRANSMITTER q TEMPERATURE BRIDGE TRANSMITTER q INDUSTRIAL PROCESS CONTROL q SCADA REMOTE DATA ACQUISITION q REMOTE TRANSDUCERS q WEIGHING SYSTEMS q ACCELEROMETERS
BRIDGE NONLINEARITY CORRECTION USING XTR106 2.0 Uncorrected Bridge Output 1.5
DESCRIPTION
The XTR106 is a low cost, monolithic 4-20mA, twowire current transmitter designed for bridge sensors. It provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry. Current for powering additional external input circuitry is available from the VREG pin. The instrumentation amplifier can be used over a wide range of gain, accommodating a variety of input signal types and sensors. Total unadjusted error of the complete current transmitter, including the linearized bridge, is low enough to permit use without adjustment in many applications. The XTR106 operates on loop power supply voltages down to 7.5V. Linearization circuitry provides second-order correction to the transfer function by controlling bridge excitation voltage. It p……
