XTR108
- COMPLETE TRANSMITTER +RTD LINEARIZATION
- TWO-WIRE, 4-20mA OUTPUT
- VOLTAGE OUTPUT (0.5V to 4.5V)
- ELIMINATES POTENTIOMETERS AND TRIMMING
- DIGITALLY CALIBRATED
- 5V SUB-REGULATOR OUTPUT
- SERIAL SPI™ BUS INTERFACE
- SSOP-24 PACKAGE
- APPLICATIONS
- REMOTE RTD TRANSMITTERS
- PRESSURE BRIDGE TRANSMITTERS
- STRAIN GAGE TRANSMITTERS
- SCADA REMOTE DATA ACQUISITION
- WEIGHING SYSTEMS
- INDUSTRIAL PROCESS CONTROL
SPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.
The XTR108 is a "smart", programmable, 4-20mA, two-wire 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. Non-volatile ex-ternal EEPROM stores calibration settings.
The all-analog signal path contains an input multiplexer, autozeroed programmable-gain instrumentation amplifier, dual programmable current sources, linearization circuit, voltage reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. Programmable level shifting compensates for sensor DC offsets. Selectable up- and down-scale output indicates out-of-range and burn-out per NAMUR NE43. Automatic reset is initiated when supply is lost.
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Technical documentation
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | 4-20mA, Two-Wire Transmitter, 'Smart' Programmable with Signal Conditioning datasheet (Rev. C) | 12 Jul 2005 | |
| EVM User's guide | XTR108EVM-USB Evaluation Board and Software Tutorial (Rev. A) | 15 Sep 2016 | ||
| Analog Design Journal | 4Q 2011 Issue Analog Applications Journal | 09 Nov 2011 | ||
| Analog Design Journal | Analog linearization of resistance temperature detectors | 09 Nov 2011 | ||
| EVM User's guide | XTR108EVM User's Guide (Rev. A) | 27 Oct 2005 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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XTR108EVM-USB — XTR108 Evaluation Module USB Version
Getting started with the XTR108 is made easy with this Evaluation Module. This kit provides the capability of calibrating the XTR108 system with high accuracy and interfacing with multiple types of RTDs or a built-in RTD Emulator circuit.
SBOC422 — XTR108EVM-USB Source Code
Supported products & hardware
Products
4-20mA signal conditioners
Hardware development
Evaluation board
SBOC423 — XTR108EVM-USB Software
Supported products & hardware
Products
4-20mA signal conditioners
Hardware development
Evaluation board
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SSOP (DBQ) | 24 | Ultra Librarian |
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Support & training
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