LM4040AEM3-3.0

Overview

The LM4040AEM3-3.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, providing a fixed 3.0 V output. It features an initial accuracy of ±0.1% and operates within a temperature range of -40°C to +85°C. The device utilizes a SOT-23-3 surface-mount package and draws a cathode current of 67 µA. Its maximum shunt current is 15 mA, with a typical low-frequency noise of 45 µVrms from 10 Hz to 10 Hz.

Feature Summary

• Provides high precision with ±0.1% initial accuracy for stable reference applications
• Operates with ultra-low power consumption suitable for battery-powered designs
• Maintains stability when driving capacitive loads

Applications

• Portable instrumentation requiring precise voltage references
• Battery-operated measurement systems
• Data acquisition channels

Procurement Notes

Verify the specific suffix 'A' confirms the ±0.1% accuracy grade and 'EM3' indicates the SOT-23-3 package variant. Confirm the '+T' designation aligns with reel packaging requirements. Ensure the manufacturer source matches Analog Devices or Maxim Integrated specifications for this exact part number.

Selection Notes

Select this component when ±0.1% accuracy at 3.0 V is required in a compact SOT-23-3 footprint. It is suitable for space-constrained designs needing low quiescent current. Compare against other LM4040 grades if higher temperature ranges or different accuracies are needed.

Part Context

This part belongs to the LM4040 family of micropower shunt voltage references. The family offers various accuracy grades and output voltages. The LM4040AEM3-3.0 specifically targets applications demanding tight tolerance and low power in small packages.

Replacement Considerations

LM4040CEM3-3.0+T (0.5% accuracy)

FAQ

What is the operating temperature range?

-40°C to +85°C

Is it stable with capacitive loads?

Yes, it remains stable under capacitive load conditions.