LM4040AECT-3.0

Overview

The LM4040AECT-3.0 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed 3.0 V output. It features an initial accuracy of ±0.1% at 25°C and operates within an extended industrial temperature range of -40°C to +125°C. The device exhibits a maximum temperature coefficient of 70 ppm/°C and maintains stability when used with capacitive loads. Its ultra-low operating current of 10 µA at 25°C makes it suitable for power-constrained designs.

Feature Summary

• Ultra-low operating current of 10 µA at 25°C
• High precision with ±0.1% initial accuracy at 25°C
• Stable operation with capacitive loads

Applications

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

Procurement Notes

Verify the specific suffix 'ECT' against official datasheets to confirm package type (SOT-323-5) and tape-and-reel packaging details. Ensure the 3.0V output variant matches design requirements. Confirm RoHS compliance status as per the latest manufacturer documentation before procurement.

Selection Notes

Select this component for applications requiring high precision in space-constrained environments. The SOT-323-5L package offers a small footprint. Consider the ±0.1% accuracy and low noise characteristics for sensitive analog circuits. Verify thermal management needs within the -40°C to +125°C operating range.

Part Context

The LM4040 series comprises micropower shunt voltage references available in multiple output voltages and accuracy grades. The 'A' designation indicates ±0.1% initial accuracy. This family is designed for portable devices and instrumentation where low power consumption and high stability are critical.

Replacement Considerations

Check for direct equivalents from other manufacturers offering similar 3.0V shunt references with comparable accuracy and package dimensions. Verify pinout compatibility and electrical specifications such as temperature coefficient and operating current.