XTR111AIDGQT

Overview

The XTR111AIDGQT 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 a 15V adjustable sub-regulator output for powering external sensors or circuits. It supports standard industrial current loops including 0mA–20mA, 4mA–20mA, and 5mA–25mA, as well as voltage outputs. The input range is 0V to 12V, and the output can drive up to 36mA. Key electrical specifications include a low offset drift of 1µV/°C, nonlinearity of 0.002%, and an accuracy of 0.015%. It is housed in a 10-pin HTSSOP (PowerPad-MSOP) package.

Feature Summary

• Integrated 15V adjustable sub-regulator output for sensor excitation
• High precision with low offset drift and minimal nonlinearity
• Configurable for standard current loop and voltage output applications

Applications

• Current mode sensor excitation
• PLC output programmable drivers
• General voltage-controlled current sources

Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm pinout compatibility and temperature grade. Ensure the ordering code matches the required tape-and-reel or tube packaging format. Cross-reference the component marking with official identification guides to prevent counterfeit substitution during procurement.

Selection Notes

Select this component when high accuracy and low drift are critical for analog signal transmission. Verify that the external PMOS transistor selected for the output stage meets the recommended specifications to maintain linearity. Confirm that the load impedance allows for the required compliance voltage within the 7V to 44V supply range.

Part Context

This part belongs to the XTR111 series of precision transmitters. It is designed to replace discrete solutions in industrial control systems. The device integrates the error amplifier, reference, and driver stages into a compact surface-mount package, simplifying the design of 4-20mA loop-powered transmitters.

Replacement Considerations

XTR111AIDGQR: Same functional device in reel packaging instead of tube.

FAQ

What determines the output current range?

The ratio between input voltage and output current is set by a single external resistor, RSET.

How does the device handle output errors?

It includes an Output Error Flag (EF) pin that signals fault conditions and an Output Disable (OD) pin for controlling the output state.

What is the maximum output current capability?

The device can provide up to 36mA of output current.