XTR106U/2K5E4 Datasheet

Current Sense Amplifiers


The XTR106U/2K5E4 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 theVREG 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 XTR106U/2K5E4 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 provides up to a 20:1 improvement in nonlinearity, even with low cost transducers. XTR106U/2K5E4 Features •LOW TOTAL UNADJUSTED ERROR•2.5V, 5V BRIDGE EXCITATION REFERENCE•5.1V REGULATOR OUTPUT•LOW SPAN DRIFT: ±25ppm/°C max•LOW OFFSET DRIFT: 0.25µV/°C•HIGH PSR: 110dB min•HIGH CMR: 86dB min•WIDE SUPPLY RANGE: 7.5V to 36V•14-PIN DIP AND SO-14 SURFACE-MOUNT XTR106U/2K5E4 Applications •PRESSURE BRIDGE TRANSMITTERS•STRAIN GAGE TRANSMITTERS•TEMPERATURE BRIDGE TRANSMITTERS•INDUSTRIAL PROCESS CONTROL•SCADA REMOTE DATA ACQUISITION•REMOTE TRANSDUCERS•WEIGHING SYSTEMS•ACCELEROMETERS


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Manufacturer information


Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.

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