LM4040AIX3-5.0

Overview

The LM4040AIX3-5.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5 V with an initial accuracy of 0.1%. The device features a maximum temperature coefficient of 70 ppm/°C and supports a maximum shunt current of 15 mA. It operates within a temperature range of -40°C to +125°C and is housed in an SC-70-3 surface-mount package.

Feature Summary

• Provides high precision with 0.1% initial accuracy for stable reference applications
• Operates over the extended industrial temperature range from -40°C to +125°C
• Features ultra-low operating current suitable for power-constrained designs

Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing precise voltage references

Procurement Notes

Verify the specific suffix 'IX3' against official manufacturer documentation, as standard listings often use 'EX3' for the SC-70-3 package. Confirm RoHS compliance status and availability through authorized distributors, as supply may be limited or subject to factory orders. Ensure the component matches the required 0.1% accuracy grade for your design specifications.

Selection Notes

Select this component when a 5 V reference with 0.1% accuracy is required in a compact SC-70-3 package. It is suitable for applications demanding operation up to +125°C. Compare against LM4040B series if lower accuracy suffices, or LM4040AIM3 variants for SOT-23 packaging options. Verify thermal management requirements for the small footprint.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references. The family offers various accuracy grades (A, B, C, D) and output voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. The LM4040 series is designed for space-saving applications using SOT23-3L and SOT323-5L packages, providing stability across broad operating conditions.

Replacement Considerations

LM4040AEX3-5.0+T is a verified equivalent offering identical electrical specifications and SC-70-3 packaging. LM4040AIM3-5.0+T serves as a functional alternative in SOT-23-3 package with similar performance characteristics.