Packaging information
| Package | Pins SSOP (DBQ) | 24 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 50 | TUBE |
Features for the 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.
Description for the XTR108
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.