LM4041CIM3-1.2+

Voltage Reference Overview

The LM4041CIM3-1.2+ is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 1.225 V with an initial accuracy of ±0.5% at 25°C. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 150 ppm/°C. It utilizes a SOT-23-3 surface-mount package and supports a maximum shunt current of 12 mA.

Voltage Reference Feature Summary

• Provides a stable fixed reverse breakdown voltage of 1.225 V for precision applications
• Operates without the need for an external stabilizing capacitor while tolerating capacitive loads
• Features bandgap reference temperature drift curvature correction for stability across operating conditions

Voltage Reference Applications

• Space-critical electronic designs requiring compact surface-mount solutions
• Battery-powered systems utilizing low operating currents
• Precision measurement circuits requiring stable reference voltages

Voltage Reference Procurement Notes

Verify that the component matches the specific manufacturer designation, as the LM4041 series is produced by multiple vendors including Texas Instruments, STMicroelectronics, and Microchip. Confirm the suffix indicates the correct tolerance grade (+0.5%) and temperature range (-40°C to +85°C) required for your application before procurement.

Voltage Reference Selection Notes

Select this component when a sub-miniature SOT-23 package is necessary for space-constrained layouts. Ensure the design accommodates the specified 12 mA maximum shunt current and requires the 1.225 V fixed output level. Verify compatibility with the 150 ppm/°C temperature coefficient against system thermal requirements.

Voltage Reference Part Context

This part belongs to the LM4041-N family of precision voltage references designed for high accuracy in small packages. The series includes both fixed and adjustable versions, offering flexibility for various reference needs while maintaining low power consumption suitable for portable and industrial electronics.

Voltage Reference Replacement Considerations

Compatible substitutes include LM4041DIM3X-1.2/NOPB and LM4041CELT-1.2. Verify pinout compatibility and ensure the alternative meets the same electrical specifications regarding output voltage, tolerance, and operating temperature range.