LM4050AEM3-2.0/NOPB

Voltage Reference Overview

The LM4050AEM3-2.0/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, originally developed under the National Semiconductor brand. It provides a fixed output voltage of 2.0V with an initial accuracy of ±0.1%. The device features a temperature coefficient of 50 ppm/°C and operates within a junction temperature range of -40°C to +125°C. Maximum cathode current is 15 mA, with a minimum operating current of 65 µA. It is housed in a SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Precision micropower shunt voltage reference design
• Fixed 2.0V output with ±0.1% initial accuracy
• Low noise performance suitable for sensitive circuits
• Automotive-grade reliability options available in family

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered systems with low quiescent current needs
• Data acquisition systems requiring high accuracy
• Industrial control applications needing thermal stability

Voltage Reference Procurement Notes

Verify that the component is sourced from Texas Instruments, as National Semiconductor is now part of TI. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Check datasheet revisions for any parameter updates. Ensure the SOT-23-3 package matches the PCB footprint. Validate the 2.0V output specification against circuit requirements.

Voltage Reference Selection Notes

Select this part when a fixed 2.0V reference is required with high initial accuracy. Consider the 50 ppm/°C temperature coefficient for thermal environments. Evaluate the 15 mA maximum current capability against load requirements. Compare with adjustable references if variable output is needed. Review noise specifications for analog signal integrity.

Voltage Reference Part Context

This component belongs to the LM4050-N series of precision shunt voltage references. It shares architectural similarities with other variants like the LM4050AEM3-2.5/NOPB and LM4050AEM3-5.0. The series offers various fixed voltage outputs while maintaining consistent package and performance characteristics across the family.

Voltage Reference Replacement Considerations

LM4050AEM3-2.5/NOPB offers similar performance with 2.5V output. LM4050AEM3-5.0 provides 5.0V output with identical package and accuracy. LM4050QCEM3X2.0/NOPB is an automotive-grade alternative with AEC-Q100 qualification.