LM4041EIM7X-1.2/NOPB

Voltage Reference Overview

The LM4041EIM7X-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed output of 1.225 V. It operates within an extended temperature range of -40°C to +125°C and utilizes the SC-70 (SOT-323) surface-mount package. The device specifies an initial accuracy of ±1% at 25°C with a maximum temperature coefficient of 150 ppm/°C. It supports a wide operating current range from a minimum of 60 µA to a maximum of 12 mA. The component is designed for stability with any capacitive load without requiring external stabilizing capacitors.

Voltage Reference Feature Summary

• Provides stable reverse breakdown voltage accuracy across wide operating temperatures and currents using bandgap curvature correction.
• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load.
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high initial accuracy.
• Features low dynamic impedance and low noise characteristics for precise voltage referencing.

Voltage Reference Applications

• Data acquisition systems
• Power supply monitoring circuits
• Instrumentation and test equipment

Voltage Reference Procurement Notes

Verify that the ordering suffix 'NOPB' confirms lead-free status and compliance with RoHS directives as per Texas Instruments standards. Ensure the specific grade 'E' corresponds to the required ±1% accuracy and 150 ppm/°C temperature coefficient specifications for your application design. Confirm the SC-70 package dimensions match your PCB footprint requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required in space-constrained designs utilizing the SC-70 package. It is suitable for applications demanding extended temperature operation up to +125°C. Choose this part over adjustable variants if a fixed voltage is sufficient, or over higher-grade parts if ±1% accuracy meets the system tolerance requirements.

Voltage Reference Part Context

This device belongs to the LM4041-N family of precision micropower shunt voltage references. The family includes both fixed and adjustable versions available in various packages such as SOT-23, SC-70, and TO-92. The LM4041 series is characterized by its ability to operate without external capacitors and its availability in multiple accuracy grades ranging from ±0.1% to ±1%.

Voltage Reference Replacement Considerations

LM4041BIM7X-1.2/NOPB: Offers tighter accuracy (±0.2%) and lower temperature coefficient (100 ppm/°C).

Voltage Reference FAQ

Does the LM4041EIM7X-1.2/NOPB require an external capacitor for stability?

No, the advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the minimum operating current for this device?

The minimum operating current is 60 µA for the LM4041-N 1.2V version.