Texas Instruments XTR106
The XTR106 is a monolithic 4mA to 20mA, twowire current transmitter designed for cost-optimized bridge sensor applications. This device provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry. The instrumentation amplifier can be used over a wide range of gain, accommodating a variety of input signal types and sensors.| Part No. | XTR106 |
|---|---|
| Datasheet | XTR106 Download |
| Manufacturer |  Texas Instruments |
| Description | 4mA-to-20mA Current Transmitter |
| Buy | Stock & Price |
FEATURES
● Low total unadjusted error● 2.5V, 5V bridge excitation references
● 5.1V regulator output
● Low span drift: ±25ppm/°C maximum
● Low offset drift: 0.25μV/°C
● High PSR: 110dB minimum
● High CMR: 86dB minimum
● Wide supply range: 7.5V to 36V
● 14-pin DIP and SOIC package options 2
APPLICATIONS
● Field transmitter and sensor● Factory automation
● Compatible with HART modem
● Pressure and temperature bridge transmitters
● Industrial process control
● SCADA remote data acquisition
● Weighing systems
● Strain gauge transmitters
● Accelerometers 3
DESCRIPTION
Current for powering additional external input circuitry is available from the VREG pin. Total unadjusted error of the complete current transmitter, including the linearized bridge, is low enough to permit use without adjustment in many applications. The XTR106 operates on loop power supply voltages down to 7.5V. Linearization circuitry provides second-order correction to the transfer function by controlling bridge excitation voltage.
