LM4041EIM7-1.2

Voltage Reference Overview

The LM4041EIM7-1.2 is a micropower shunt voltage reference from Texas Instruments, providing a fixed nominal output of 1.225 V. It features an initial accuracy of ±1% and a maximum temperature coefficient of 150 ppm/°C. The device operates within a wide current range of 60 µA to 12 mA and maintains stability with any capacitive load without requiring external components. It is housed in a compact SC-70 (SOT-323) surface-mount package and supports an industrial operating temperature range from -40°C to +85°C.

Voltage Reference Feature Summary

• Provides stable 1.225 V reference output with high precision
• Operates stably with any capacitive load without external capacitors
• Ultra-low power consumption suitable for battery-powered designs
• Compact SC-70 package optimized for space-constrained applications

Voltage Reference Applications

• Portable and battery-operated equipment
• Data acquisition systems
• Power supply monitoring circuits
• Precision measurement instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix 'E' indicates the D-grade ±1% tolerance variant during procurement. Confirm the 'M7' designation corresponds to the SC-70 package type. Ensure the ordering part number matches the required temperature grade and packaging format to avoid functional mismatches in final assembly.

Voltage Reference Selection Notes

Select this component when a low-cost, fixed 1.225 V reference is required in a minimal footprint. It is suitable for applications where ±1% accuracy is sufficient and ultra-low quiescent current is prioritized over higher precision grades like A or B. Verify that the 12 mA maximum cathode current meets the circuit's load requirements.

Voltage Reference Part Context

This device belongs to the LM4041-N family of precision micropower shunt voltage references. The family offers various accuracy grades and packages, including SOT-23 and TO-92. The LM4041 series is designed to replace larger, less efficient reference solutions in modern portable electronics while maintaining high stability across temperature variations.

Voltage Reference Replacement Considerations

LM4041BIM7-1.2/NOPB: Offers higher 0.2% accuracy but similar package and function.

Voltage Reference FAQ

Does the LM4041EIM7-1.2 require an external capacitor for stability?

No, the device is designed to be stable with any capacitive load and does not require an external stabilizing capacitor.

What is the minimum operating current for this device?

The minimum operating current is typically 60 µA, allowing for efficient operation in low-power applications.