TEXAS INSTRUMENTS LM4040 Precision Micropower Shunt Voltage Reference, 5V, SOT-

The TEXAS INSTRUMENTS LM4040 is a precision micropower shunt voltage reference designed for demanding energy management applications. This advanced component is part of the AEC-Q100 qualified series, ensuring reliability and performance for automotive and industrial use.

Its innovative design eliminates the need for an external output capacitor while maintaining stability with any capacitive load, simplifying circuit design and reducing component count. The LM4040 utilises a precision fuse and zener-zap trimming process during manufacturing to achieve a high initial accuracy. It features band-gap reference temperature drift curvature correction and low dynamic impedance, guaranteeing a stable 5V reference output across a wide range of operating temperatures and currents.

Key Features & Benefits

• Easy to Use: No output capacitor required and tolerates capacitive loads, simplifying design and layout.
• High Precision: Features initial accuracy and excellent temperature stability for reliable voltage referencing.
• Robust Design: Qualified to the AEC-Q100 standard for enhanced reliability in automotive applications.
• Environmentally Conscious: Manufactured as a green product, free from antimony and bromine (Sb/Br).
• Compact Form: Supplied in a space-saving SOT-23-3 surface-mount package.

This voltage reference is ideal for portable devices, test and measurement equipment, sensing instrumentation, automation process control, power management systems, automotive electronics, and audio applications. It provides a stable and accurate 5V reference critical for analogue-to-digital converters, data acquisition systems, and precision measurement circuits.