LM4040AEX3-5.0

Overview

The LM4040AEX3-5.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc. under the Maxim Integrated brand. It provides a fixed 5 V output with an initial accuracy of 0.1% and a temperature coefficient of 30 PPM/C. The device operates within a temperature range of -40 C to +125 C and supports a maximum shunt current of 15 mA. It is housed in a compact SC-70-3 surface-mount package, designed for precision applications requiring stable voltage regulation.

Feature Summary

• Provides high precision voltage regulation with 0.1% initial accuracy
• Features ultra-low operating current suitable for power-constrained designs
• Maintains stability across a wide industrial temperature range

Applications

• Portable instrumentation systems
• Battery-powered measurement devices
• Data acquisition circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability requirements before procurement. Ensure storage conditions align with moisture sensitivity level specifications to maintain device integrity during assembly processes.

Selection Notes

Select this component when precise 5 V reference is required in space-limited SMD layouts. The SC-70-3 package offers significant size reduction compared to traditional packages. Consider the 30 PPM/C temperature coefficient for thermal stability needs and verify that the 15 mA maximum shunt current meets circuit load requirements.

Part Context

This part belongs to the LM4040A series of improved precision micropower shunt references. It represents a specialized variant within the broader LM4040 family, distinguished by its enhanced 0.1% accuracy grade and specific SC-70-3 packaging configuration optimized for modern surface-mount technology assembly lines.

Replacement Considerations

LM4040AEX3-5.0+T is listed as an equivalent designation.