LM4041CIM7-1.2

Voltage Reference Overview

The LM4041CIM7-1.2 is a micropower shunt voltage reference from Texas Instruments, providing a fixed nominal output of 1.225V. It features an initial accuracy of ±0.5% and a maximum temperature coefficient of 100 ppm/°C. The device operates within a wide current range of 45µA to 12mA and maintains stability with all capacitive loads without requiring external output capacitors. 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 1.225V output with high precision and low temperature drift
• Operates stably with any capacitive load without external compensation components
• Designed for space-constrained applications using a small SC-70 package

Voltage Reference Applications

• Data acquisition systems
• Portable battery-powered equipment
• Process control instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix 'CIM7' against the official datasheet to confirm the SC-70 package and industrial temperature grade. Ensure the ordering code matches the required tolerance class and that the NOPB designation is present if lead-free compliance is mandatory for the assembly process.

Voltage Reference Selection Notes

Select this component when a fixed 1.225V reference is required in a minimal footprint. It is suitable for designs prioritizing low quiescent current and stability across varying capacitive loads. Consider alternative grades if tighter initial accuracy or extended temperature ranges are necessary for the specific application environment.

Voltage Reference Part Context

This part belongs to the LM4041 family of precision micropower shunt references. The series offers various accuracy grades and packages, including SOT-23 and TO-92. The CIM7 variant specifically denotes the SC-70 package configuration with industrial temperature specifications, distinguishing it from automotive or extended temperature versions.

Voltage Reference Replacement Considerations

LM4041CIM3-1.2/NOPB

Voltage Reference FAQ

Does the LM4041CIM7-1.2 require an output capacitor for stability?

No, the device is designed to be stable with all capacitive loads and does not require an external output capacitor.

What is the typical operating current for this voltage reference?

The typical operating current is 45µA at 25°C, supporting a wide range up to 12mA.