LM4041AEM3-1.2+

Overview

The LM4041AEM3-1.2+ is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, providing a fixed 1.225 V output voltage with an initial accuracy of ±0.1% at 25 °C and a maximum temperature coefficient of 100 ppm/°C. It operates within a current range of 60 µA to 12 mA and features low dynamic impedance for stable performance across wide operating temperatures and currents. The device is housed in a compact SC-70 (SOT-323) surface-mount package, designed for space-constrained applications without requiring external stabilizing capacitors.

Feature Summary

• Provides high precision with ±0.1% initial accuracy at 25 °C
• Operates stably with any capacitive load without external components
• Features ultra-low operating current suitable for power-restricted designs

Applications

• Space-critical portable electronic devices
• Battery-powered instrumentation systems
• Precision data acquisition circuits

Procurement Notes

Verify the specific suffix 'AEM3' corresponds to the SC-70 package and '1.2' indicates the 1.225 V output variant. Confirm that the '+T' or '+' designation aligns with the required tape-and-reel packaging format versus cut tape. Ensure the manufacturer source matches the requested Analog Devices or Maxim Integrated branding for compliance purposes.

Selection Notes

Select this component when a sub-miniature footprint is mandatory alongside high voltage stability. The LM4041AEM3-1.2+ is appropriate for designs requiring minimal quiescent current consumption while maintaining strict tolerance limits. Consider the industrial temperature range availability if operation extends beyond standard commercial limits.

Part Context

This part belongs to the LM4041-N family of precision micropower shunt references. It shares core architectural features with other variants like the SOT-23 packaged versions but utilizes the smaller SC-70 form factor. The series is characterized by bandgap reference curvature correction and low noise performance.

Replacement Considerations

LM4041DIM3X-1.2/NOPB offers identical electrical specifications in a SOT-23 package. LM4041BIM7X-1.2/NOPB provides similar performance in a 5-pin SC-70 configuration.