LM4040AIM3X-10

Overview

The LM4040AIM3X-10 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed reverse breakdown voltage of 10 V with an initial tolerance of ±0.1% at 25°C. The device operates within a wide current range from 100 μA to 15 mA and features a maximum temperature coefficient of 100 ppm/°C. Designed for industrial applications, it functions reliably across temperatures from -40°C to +85°C. The component utilizes a SOT-23 surface-mount package.

Feature Summary

• 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 accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance over varying currents and temperatures

Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision audio components

Procurement Notes

Verify the specific suffix 'M3X' corresponds to the SOT-23 tape-and-reel packaging configuration. Confirm that the 'A' grade designation aligns with the required ±0.1% initial tolerance specification. Ensure the operating environment remains within the specified industrial temperature limits to maintain guaranteed electrical characteristics.

Selection Notes

Select this component when a fixed 10 V reference is required in space-constrained designs. The A-grade tolerance ensures high precision without requiring external calibration. Verify that the minimum operating current requirement of 100 μA is compatible with the circuit bias conditions.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references. The family offers various fixed voltage options including 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4040-N series is designed for applications requiring small packages such as SOT-23, SC70, and TO-92.

Replacement Considerations

LM4040DIM3X-10/NOPB

FAQ

Does the LM4040AIM3X-10 require an output capacitor?

No, the advanced design eliminates the need for an external stabilizing capacitor.

What is the minimum operating current for the 10-V version?

The minimum operating current increases to 100 μA for the 10-V LM4040-N.