XTR110KU/1K

Overview

The XTR110KU/1K is a precision voltage-to-current converter and transmitter manufactured by Texas Instruments. It operates on a two-wire interface, requiring a supply voltage between 13.5 V and 40 V with a typical quiescent current of 3 mA. The device accepts an input voltage range of 0 V to 10 V and provides a proportional output current up to 25 mA. It features a built-in 10 V reference output for sensor excitation. Packaged in a 16-pin SOIC surface-mount format, it functions as a single-channel sensor interface suitable for industrial applications within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a precision voltage-to-current conversion circuit optimized for two-wire loop-powered operation.
• Includes an internal high-accuracy 10 V reference output capable of powering external sensors.
• Designed for linear signal transmission with minimal external component requirements.

Applications

• Industrial process control systems utilizing standard 4-20 mA current loops.
• Signal conditioning for pressure, temperature, or flow transmitters.
• Remote monitoring setups requiring long-distance analog signal transmission over two-wire cables.

Procurement Notes

Verify the specific suffix 'KU/1K' against the manufacturer's latest datasheet to confirm package type and reel specifications. Ensure compatibility with moisture sensitivity levels if storage conditions exceed recommended limits. Cross-reference the ordering number with official distributor catalogs to validate availability and authenticity before finalizing procurement orders.

Selection Notes

Select this component when a precise 0-10 V to 25 mA conversion is required in a two-wire configuration. Consider the 13.5 V minimum supply voltage constraint for low-voltage loop designs. Evaluate the SOIC-16 package constraints regarding thermal dissipation and PCB space compared to through-hole alternatives like the XTR110KP.

Part Context

This part belongs to the XTR110 series of precision current transmitters from Texas Instruments. It shares core functional architecture with other variants such as the XTR110KP, differing primarily in packaging and manufacturing lot specifications. The series is designed to simplify the design of isolated and non-isolated current loop interfaces.

Replacement Considerations

The XTR110KP serves as a pin-compatible alternative offering the same electrical performance in a PDIP-16 through-hole package. Verify that the target application supports through-hole mounting if substituting the KU variant with the KP version.