LT581TH

Voltage Reference Overview

The LT581TH is a three-terminal precision voltage reference IC manufactured by Analog Devices Inc. It provides a nominal output voltage of 10 V with a tight tolerance range of 9.99 V to 10.01 V. The device is housed in a TO-39 metal can package with three pins. It operates within an extended temperature range from -55 °C to 125 °C. The component is classified as a shunt voltage reference and is designed for high-stability applications requiring precise voltage regulation.

Voltage Reference Feature Summary

• Provides a stable 10 V reference output with high precision
• Constructed in a hermetic metal can package for environmental protection
• Capable of operation across a wide industrial temperature range

Voltage Reference Applications

• High-precision data acquisition systems
• Calibration equipment requiring stable voltage references
• Test and measurement instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix and revision code against official Analog Devices documentation to ensure compatibility with existing designs. Confirm that the MIL-STD-883 screening level meets project requirements, as this affects long-term reliability and performance consistency in critical applications.

Voltage Reference Selection Notes

Select the LT581TH when a fixed 10 V reference is required in a ruggedized environment. The TO-39 package offers superior thermal and mechanical stability compared to plastic packages. Ensure the design accounts for the power dissipation limits inherent to the metal can construction and the specific load current requirements of the application.

Voltage Reference Part Context

This component belongs to the family of precision voltage references produced by Linear Technology, now part of Analog Devices Inc. These devices are engineered for applications demanding low drift and high accuracy. The LT581TH specifically targets markets where radiation hardness or extreme temperature resilience is necessary, leveraging the robustness of the metal can format.

Voltage Reference Replacement Considerations

Consult official Analog Devices substitution guides for verified equivalents. Generic replacements may not match the MIL-STD-883 screening or the specific thermal characteristics of the TO-39 package.