LM4040BELT-2.0

Overview

The LM4040BELT-2.0 is a precision shunt voltage reference manufactured by STMicroelectronics, providing a fixed output of 2.048 V. It features an initial accuracy of ±0.2% and a maximum temperature coefficient of 70 ppm/°C. The device operates within an industrial temperature range of -40°C to +125°C with ultra-low operating current of 10 µA at 25°C. It supports a maximum cathode current of 15 mA and exhibits low noise characteristics. The component is housed in a SOT-23-3L surface-mount package.

Feature Summary

• Ultra-low operating current suitable for power-constrained designs
• High precision with ±0.2% initial accuracy at 25°C
• Stable operation when used with capacitive loads
• Very low low-frequency noise performance

Applications

• Portable battery-powered equipment
• Data acquisition systems
• Instrumentation

Procurement Notes

Verify the specific suffix 'BELT' against official STMicroelectronics documentation to confirm the exact tolerance grade, package type, and tape-and-reel specifications. Ensure the selected variant matches the required 2.048 V output and ±0.2% accuracy for the target application. Cross-reference the datasheet for absolute maximum ratings and thermal considerations before integration.

Selection Notes

Select this component for applications requiring high stability and low power consumption in compact form factors. The SOT-23-3L package is ideal for space-saving designs. Consider the ±0.2% accuracy and 70 ppm/°C temperature coefficient for precision requirements. Evaluate the 10 µA operating current for battery life optimization in portable devices.

Part Context

The LM4040 series comprises micro-power shunt voltage references designed for industrial temperature ranges. This family offers various fixed output voltages and accuracy grades. The LM4040BELT-2.0 represents a specific configuration within this series, optimized for precision applications requiring stable reference voltages in small surface-mount packages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.