LM4050AEM3X-10

Voltage Reference Overview

The LM4050AEM3X-10 is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 10 V. It offers an initial accuracy of ±0.1% at 25°C and operates within an extended temperature range of -40°C to 125°C. The device utilizes a small SOT-23 package and requires no external stabilizing capacitor for stability with capacitive loads. Key electrical parameters include a maximum temperature coefficient of 50 ppm/°C, a typical wideband noise of 150 μVrms (10 Hz to 10 kHz), and a minimum operating current of 80 μA at 25°C.

Voltage Reference Feature Summary

• Eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy.
• Bandgap reference temperature drift curvature correction ensures stable performance over a wide range of currents.

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Product testing

Voltage Reference Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type, temperature grade, and reel specifications. Confirm that the component meets all required environmental standards and RoHS compliance before final procurement decisions are made.

Voltage Reference Selection Notes

Select this component when space-critical applications require a precise 10 V reference in a miniature SOT-23 package. Ensure the design accommodates the specified minimum operating current and thermal derating requirements for the extended temperature range.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. The 'A' designation indicates a tighter initial tolerance of ±0.1%, while the 'EM3' suffix specifies the SOT-23 surface-mount package configuration.

Voltage Reference Replacement Considerations

LM4050CEM3X-10/NOPB

Voltage Reference FAQ

Does the LM4050AEM3X-10 require an output capacitor?

No, the LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the typical wideband noise specification?

The typical wideband noise is 150 μVrms measured between 10 Hz and 10 kHz.