XTR115UA

Sensor And Detector Interfaces Overview

The XTR115UA is a precision current loop transmitter manufactured by Texas Instruments, designed for industrial process control applications. It converts an analog voltage input into a standard 4-20mA two-wire current output. The device integrates a high-precision voltage reference that can serve as an excitation source for external sensors such as RTDs or bridge transducers. Key electrical specifications include a supply voltage range of 7.5V to 36V, a maximum static current consumption of 200µA, and a bandwidth of 380kHz. It operates within a temperature range of -55°C to 125°C and is housed in an 8-pin SOIC package.

Sensor And Detector Interfaces Feature Summary

• Integrates a precision voltage reference suitable for powering external sensors like RTDs or bridge circuits.
• Provides linear conversion from voltage input to a 4-20mA two-wire current loop output.
• Features low static current consumption to support power-constrained two-wire installations.
• Includes internal circuitry for gain adjustment without requiring external operational amplifiers.

Sensor And Detector Interfaces Applications

• Two-wire 4-20mA current loop transmission systems.
• Industrial sensor signal conditioning for RTD and bridge-based transducers.
• Process control instrumentation requiring isolated voltage-to-current conversion.

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix (e.g., /2K5) to confirm packaging type, as standard tape-and-reel quantities may differ from bulk units. Ensure the selected variant matches the required operating temperature range and pin configuration for your PCB layout. Cross-reference the manufacturer datasheet for RoHS compliance status and moisture sensitivity levels before finalizing procurement orders.

Sensor And Detector Interfaces Selection Notes

Select the XTR115UA when a single-chip solution for voltage-to-current conversion with integrated sensor excitation is required. Compare against the XTR105 if dual current mirrors are needed instead of a voltage reference. Verify that the input voltage range aligns with your sensor output and that the 8-pin SOIC package fits your board space constraints. Consider the 125°C max junction temperature for high-ambient environments.

Sensor And Detector Interfaces Part Context

The XTR115UA belongs to the XTR11x family of current transmitters from Texas Instruments. This series is engineered for robust industrial environments, offering high accuracy and stability. It complements other interface ICs like the XTR105 and XTR117, providing specialized functionality for two-wire loop-powered applications where minimizing component count and board space is critical.

Sensor And Detector Interfaces Replacement Considerations

The XTR116UA is a related part within the same family but may have different electrical characteristics or pinouts; verify compatibility before substitution. No direct cross-manufacturer equivalents are confirmed in public documentation. Always validate pin-for-pin compatibility and thermal performance when replacing components in existing designs.