Product Summary
The XTR105UA is a monolithic 4-20mA, two-wire current transmitter with two precision current sources. It provides complete current excitation for platinum rtd temperature sensors and bridges, instrumentation amplifier, and current output circuitry on a single integrated circuit. The XTR105UA is available in 14-pin plastic DIP and SO-14 surface-mount package and is specified for -40℃ to +85℃ industrial temperature range.
Parametrics
XTR105UA absolute maximum ratings: (1)Offset Voltage: ±50V; (2)Common-Mode Input Range: 1.25 to 3.5V; (3)Input Offset Current: ±0.2mA; (4)Operating temperature: –55 to +125℃.
Features
XTR105UA feature: (1)low unadjusted error; (2)two precision current sources; (3)rtd or bridge excitation; (4)two or three-wire rtd operation; (5)low offset drift; (6)low output current noise; (7)high per; (8)high cmr.
Diagrams

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![]() XTR105UA |
![]() Texas Instruments |
![]() Current Sense Amplifiers 4-20mA Crnt Trnsmtr w/Sensor Exc & Lin |
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![]() XTR105UA/2K5 |
![]() Texas Instruments |
![]() Current Sense Amplifiers 4-20mA Crnt Trnsmtr w/Sensor Exc & Lin |
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![]() XTR105UA/2K5E4 |
![]() Texas Instruments |
![]() Current Sense Amplifiers 4-20mA Crnt Trnsmtr w/Sensor Exc & Lin |
![]() Data Sheet |
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![]() XTR105UAG4 |
![]() Texas Instruments |
![]() Current Sense Amplifiers 4-20mA Crnt Trnsmtr w/Sensor Exc & Lin |
![]() Data Sheet |
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(China (Mainland))









