LM4050AEM3-10

Voltage Reference Overview

The LM4050AEM3-10 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed reverse breakdown voltage of 10 V with an initial accuracy of ±0.1% at 25°C. The device operates within a wide current range from 80 μA to 15 mA and features a maximum temperature coefficient of 50 ppm/°C across the extended industrial temperature range of -40°C to 125°C. Packaged in a compact SOT-23 surface-mount format, it eliminates the need for external stabilizing capacitors while tolerating capacitive loads.

Voltage Reference Feature Summary

• Compact SOT-23 package designed for space-critical applications
• Capable of driving capacitive loads without external stabilization components
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'A' indicates the A-grade tolerance level of ±0.1%. Confirm the 'EM3' designation corresponds to the SOT-23 package variant. Ensure the operating environment aligns with the specified extended temperature range limits. Cross-reference the datasheet revision date against manufacturing lot requirements to ensure compatibility with current design specifications.

Voltage Reference Selection Notes

Select this component when a stable 10 V reference is required in a minimal footprint. The A-grade specification ensures tight initial accuracy suitable for high-precision measurement circuits. Consider the minimum operating current requirement of 80 μA when designing bias networks. Verify that the thermal resistance characteristics fit the PCB layout constraints for the intended power dissipation levels.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. The series offers multiple fixed voltage options including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4050-N-Q1 variant shares similar electrical characteristics but includes AEC-Q100 Grade 1 qualification for automotive applications.

Voltage Reference Replacement Considerations

LM4050AEM3X-10/NOPB