LM4050AIM3X-5.0

Voltage Reference Overview

The LM4050AIM3X-5.0 is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 5 V. It operates within an extended temperature range of -40°C to +125°C and utilizes the SOT-23 surface-mount package. The device guarantees an initial accuracy of ±0.1% at 25°C with a maximum temperature coefficient of 50 ppm/°C across the operating range. It supports a wide operating current range from 74 μA to 15 mA and exhibits a typical wideband noise of 93 μVrms between 10 Hz and 10 kHz.

Voltage Reference 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 temperatures

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Voltage Reference Procurement Notes

Verify the specific suffix 'X' indicates reel packaging when sourcing. Confirm the 'A' grade designation matches the required ±0.1% tolerance specification. Ensure the manufacturer is identified as Texas Instruments or its authorized production facilities. Check for RoHS compliance status relevant to your region's regulations. Validate that the component meets the extended temperature range requirements for your application environment.

Voltage Reference Selection Notes

Select this component when space-critical designs require a precise voltage reference in a miniature SOT-23 package. It is suitable for applications demanding low power consumption and high accuracy without external compensation capacitors. Consider the extended temperature range capability if the operating environment exceeds standard industrial limits. Evaluate the noise specifications against the sensitivity requirements of the downstream circuitry.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. The series offers various fixed voltage options including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. The A-grade designation specifically denotes the highest initial accuracy tier within the product line, ensuring tight tolerance at room temperature conditions.

Voltage Reference Replacement Considerations

LM4050BIM3X-5.0

Voltage Reference FAQ

Does the LM4050AIM3X-5.0 require an output capacitor for stability?

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

What is the maximum temperature coefficient for this device?

The maximum temperature coefficient is 50 ppm/°C across the extended temperature range.