LM4040AEX3-3.0

Overview

The LM4040AEX3-3.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed 3.0 V output with an initial accuracy of ±0.1% and a temperature coefficient of 20 ppm/°C. The device operates within a current range up to 15 mA and functions across a temperature range of -40°C to +125°C. Packaged in SC-70-3, it supports surface mount installation.

Feature Summary

• Delivers high precision with ±0.1% initial accuracy for stable reference performance.
• Features ultra-low operating current suitable for power-constrained designs.
• Maintains stability under capacitive load conditions.

Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition circuits

Procurement Notes

Verify the specific suffix EX3 indicates the SC-70-3 package configuration. Confirm the A grade corresponds to the ±0.1% accuracy specification. Ensure the manufacturer designation matches Analog Devices or Maxim Integrated records. Check RoHS compliance status against current regulatory requirements.

Selection Notes

Select this component when a compact SC-70-3 footprint is required alongside high precision. The 20 ppm/°C temperature coefficient suits applications needing stability over wide industrial temperatures. Consider the 15 mA maximum shunt current limit for circuit design constraints.

Part Context

This part belongs to the LM4040 family of micropower shunt references. The family offers various fixed voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. The A grade variant specifically targets applications demanding tighter tolerance than standard versions.

Replacement Considerations

LM4040AEX3-3.0+T serves as a direct equivalent with identical electrical characteristics and packaging.