Product Summary
The XTR108EA is a smart, programmable, 4-20mA, twowire transmitter designed for temperature and bridge sensors. Zero, span, and linearization errors in the analog signal path can be calibrated via a standard digital serial interface, eliminating manual trimming. Current sources, steered through the multiplexer, can be used to directly excite RTD temperature sensors, pressure bridges, or other transducers. An uncommitted op amp can be used to convert current into a voltage. The XTR108EA is specified for –40℃ to +85℃.
Parametrics
XTR108EA absolute maximum ratings: (1)Loop Supply Voltage, VPS: Dependent on External FET; (2)XTR Supply Voltage, External VS (Referenced to IRET Pin): +5.5V; (3)Input Voltage to Multiplexer (Referenced to IRET Pin): 0V to VS; (4)Output Current Limit: Continuous; (5)Storage Temperature Range: –55℃ to +125℃; (6)Junction Temperature: +165℃; (7)Lead Temperature (soldering, 10s): +300℃.
Features
XTR108EA features: (1)Complete transmitter + RTD linearization; (2)Two-wire, 4-20mA output; (3)Voltage output (0.5V to 4.5V); (4)Eliminates potentiometers and trimming; (5)Digitally calibrated; (6)5V sub-regulator output; (7)Serial spi bus interface; (8)SSOP-24 package.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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XTR108EA |
Texas Instruments |
Special Purpose Amplifiers 4-20mA 2Wire Trsmtr 'Smart' Prog |
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XTR108EA/2K5 |
Texas Instruments |
Special Purpose Amplifiers 4-20mA 2Wire Trsmtr 'Smart' Prog |
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XTR108EAG4 |
Texas Instruments |
Special Purpose Amplifiers 4-20mA 2Wire Trsmtr 'Smart' Prog |
Data Sheet |
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XTR108EA/2K5G4 |
Texas Instruments |
Special Purpose Amplifiers 4-20mA 2Wire Trsmtr 'Smart' Prog |
Data Sheet |
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