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4-20mA signal conditioners
4-20mA Current Transmitter with Sensor Excitation and Linearization
Data sheet
- document-pdfAcrobat XTR105: 4-20mA Current Transmitter with Sensor Excitation and Linearization datasheet (Rev. B)
XTR105
Product details
- LOW UNADJUSTED ERROR
- TWO PRECISION CURRENT SOURCES: 800 µA each
- LINEARIZATION
- 2-OR 3-WIRE RTD OPERATION
- LOW OFFSET DRIFT: 0.4 µV/°C
- LOW OUTPUT CURRENT NOISE: 30NAPP
- HIGH PSR: 110dB minimum
- HIGH CMR: 86dB minimum
- WIDE SUPPLY RANGE: 7.5V to 36V
- DIP-14 AND SO-14 PACKAGES
- APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- FACTORY AUTOMATION
- SCADA REMOTE DATA ACQUISITION
- REMOTE TEMPERATURE AND PRESSURE TRANSDUCERS
All trademarks are the property of their respective owners.
- LOW UNADJUSTED ERROR
- TWO PRECISION CURRENT SOURCES: 800 µA each
- LINEARIZATION
- 2-OR 3-WIRE RTD OPERATION
- LOW OFFSET DRIFT: 0.4 µV/°C
- LOW OUTPUT CURRENT NOISE: 30NAPP
- HIGH PSR: 110dB minimum
- HIGH CMR: 86dB minimum
- WIDE SUPPLY RANGE: 7.5V to 36V
- DIP-14 AND SO-14 PACKAGES
- APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- FACTORY AUTOMATION
- SCADA REMOTE DATA ACQUISITION
- REMOTE TEMPERATURE AND PRESSURE TRANSDUCERS
All trademarks are the property of their respective owners.
The XTR105 is a monolithic 4-20mA, 2-wire current transmitter with two precision current sources. It provides complete current excitation for platinum RTD temperature sensors and bridges, instrumentation amplifiers, and current output circuitry on a single integrated circuit.
Versatile linearization circuitry provides a 2nd-order correction to the RTD, typically achieving a 40:1 improvement in linearity.
Instrumentation amplifier gain can be configured for a wide range of temperature or pressure measurements. Total unadjusted error of the complete current transmitter is low enough to permit use without adjustment in many applications. This includes zero output current drift, span drift, and nonlinearity. The XTR105 operates on loop power-supply voltages down to 7.5V.
The XTR105 is available in DIP-14 and SO-14 surface-mount packages and is specified for the 40°C to +85°C industrial temperature range.
The XTR105 is a monolithic 4-20mA, 2-wire current transmitter with two precision current sources. It provides complete current excitation for platinum RTD temperature sensors and bridges, instrumentation amplifiers, and current output circuitry on a single integrated circuit.
Versatile linearization circuitry provides a 2nd-order correction to the RTD, typically achieving a 40:1 improvement in linearity.
Instrumentation amplifier gain can be configured for a wide range of temperature or pressure measurements. Total unadjusted error of the complete current transmitter is low enough to permit use without adjustment in many applications. This includes zero output current drift, span drift, and nonlinearity. The XTR105 operates on loop power-supply voltages down to 7.5V.
The XTR105 is available in DIP-14 and SO-14 surface-mount packages and is specified for the 40°C to +85°C industrial temperature range.
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Technical documentation
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View all 6Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | XTR105: 4-20mA Current Transmitter with Sensor Excitation and Linearization datasheet (Rev. B) | 27 Aug 2004 | |
Analog Design Journal | 4Q 2011 Issue Analog Applications Journal | 09 Nov 2011 | ||
Analog Design Journal | Analog linearization of resistance temperature detectors | 09 Nov 2011 | ||
Application note | 02 Oct 2000 | |||
Application note | FOUR-WIRE RTD CURRENT-LOOP TRANSMITTER | 27 Sep 2000 | ||
Application note | IC Building Blocks Form Complete Isolated 4-20mA Current-Loop | 27 Sep 2000 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
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User guide: PDF
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Calculation tool
XTR-ERROR-CALC — Current Transmitter Error Calculator
This spreadsheet calculates error for Current Transmitter (XTR) devices and external components.
Supported products & hardware
Products
4-20mA signal conditioners
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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User guide: PDF
Reference designs
TIPD161 — Analog Linearized 3-Wire PT100 RTD to 2-Wire 4-20mA Current Loop Transmitter Reference Design
This design features a single-chip solution to linearize and transmit a 3-wire PT100 RTD over the industry standard 2-wire 4-20mA current loop. The design was configured for a -200°C to 800°C temperature range, but other temperature ranges can be achieved by adjusting the (...)
Design guide: PDF
Schematic: PDF
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
PDIP (N) | 14 | Ultra Librarian |
SOIC (D) | 14 | Ultra Librarian |
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