XTR111AIDGQR

Overview

The XTR111AIDGQR is a precision voltage-to-current converter and transmitter manufactured by Texas Instruments. It operates on a single power supply ranging from 7V to 44V with a typical quiescent current of 450µA. The device features an external P-MOSFET output stage capable of delivering up to 36mA, supporting standard industrial loops such as 0-20mA, 4-20mA, and 5-25mA. Input range is set via a single resistor (RSET), achieving a nonlinearity of 0.002% and low offset drift of 1µV/°C. It includes a programmable sub-regulator output (3V to 15V) for powering external sensors and provides diagnostic flags for output failure and disable control.

Feature Summary

• Integrated external P-MOSFET driver ensures high output resistance and wide compliance voltage range extending below ground potential.
• Built-in adjustable sub-regulator output supplies stable voltage to external sensor circuits without additional components.
• Diagnostic capabilities include dedicated Output Disable and Output Failure flag signals for system monitoring.

Applications

• Current-mode sensor excitation and signal conditioning
• PLC output drivers for analog process control
• Standard 3-wire industrial current loop transmitters

Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm package type and temperature grade. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Check for any recent product change notices that may affect pinout or electrical characteristics compared to legacy versions.

Selection Notes

Select this component when high accuracy and low drift are required for industrial sensor interfaces. Ensure the external P-MOSFET selected matches the recommended specifications in the datasheet to maintain linearity and compliance voltage performance. Verify that the input signal range aligns with the RSET calculation for the desired output current span.

Part Context

This part belongs to the XTR111 series of precision voltage-to-current converters. It is designed specifically for industrial automation applications requiring reliable analog signal transmission over long distances using standard current loops. The MSOP-10 PowerPad package allows for compact PCB layout while providing thermal stability.

Replacement Considerations

Direct substitutes include the XTR111AIDGQT and XTR111AIDGQRG4. Verify that the replacement variant maintains the same 10-pin MSOP/HTSSOP PowerPad footprint and identical electrical parameters before integration into existing designs.