XTR108 Series

4-20mA, Two-Wire Transmitter 'Smart' Programmable with Signal Conditioning

Catalog

4-20mA, Two-Wire Transmitter 'Smart' Programmable with Signal Conditioning

Part	Mounting Type	Current - Supply	Supplier Device Package	Input Type	Package / Case	Package / Case [custom]	Type	Operating Temperature [Min]	Operating Temperature [Max]	Function [Max]	Function [Min]	Function	Utilized IC / Part	Supplied Contents
Texas Instruments XTR108EA/2K5	Surface Mount	20 mA	24-SSOP	Voltage	24-SSOP	0.154 " 3.9 mm	Current Transmitter	-55 °C	125 °C
Texas Instruments XTR108EVM-USB							Interface			20 mA	4 mA	Transmitter	XTR108	Board(s) Cable(s)
Texas Instruments XTR108TDD1		20 mA		Voltage	Die		Current Transmitter	-55 °C	125 °C
Texas Instruments XTR108EA	Surface Mount	20 mA	24-SSOP	Voltage	24-SSOP	0.154 " 3.9 mm	Current Transmitter	-55 °C	125 °C
Texas Instruments XTR108TDD2		20 mA		Voltage	Die		Current Transmitter	-55 °C	125 °C

Catalog

4-20mA, Two-Wire Transmitter 'Smart' Programmable with Signal Conditioning

Key Features

• COMPLETE TRANSMITTER +RTD LINEARIZATIONTWO-WIRE, 4-20mA OUTPUTVOLTAGE OUTPUT (0.5V to 4.5V)ELIMINATES POTENTIOMETERS AND TRIMMINGDIGITALLY CALIBRATED5V SUB-REGULATOR OUTPUTSERIAL SPI™ BUS INTERFACESSOP-24 PACKAGEAPPLICATIONSREMOTE RTD TRANSMITTERSPRESSURE BRIDGE TRANSMITTERSSTRAIN GAGE TRANSMITTERSSCADA REMOTE DATA ACQUISITIONWEIGHING SYSTEMSINDUSTRIAL PROCESS CONTROLSPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.COMPLETE TRANSMITTER +RTD LINEARIZATIONTWO-WIRE, 4-20mA OUTPUTVOLTAGE OUTPUT (0.5V to 4.5V)ELIMINATES POTENTIOMETERS AND TRIMMINGDIGITALLY CALIBRATED5V SUB-REGULATOR OUTPUTSERIAL SPI™ BUS INTERFACESSOP-24 PACKAGEAPPLICATIONSREMOTE RTD TRANSMITTERSPRESSURE BRIDGE TRANSMITTERSSTRAIN GAGE TRANSMITTERSSCADA REMOTE DATA ACQUISITIONWEIGHING SYSTEMSINDUSTRIAL PROCESS CONTROLSPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.

Description

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. 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.