LM4040DEM3-5.0/NOPB

Overview

The LM4040DEM3-5.0/NOPB is a micropower shunt voltage reference from the LM4040 series, manufactured by Texas Instruments. It provides a fixed output voltage of 5 V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and utilizes a SOT-23 surface-mount package.

Feature Summary

• Micropower shunt topology designed for low current consumption applications
• Fixed 5 V output reference with 1% initial precision tolerance
• Compact SOT-23 surface-mount package suitable for space-constrained designs

Applications

• Portable instrumentation requiring stable voltage references
• Battery-powered measurement systems
• Data acquisition channels needing precise reference voltages

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific part number matches project requirements regarding accuracy class and package type. Ensure compliance with relevant environmental standards and check for any obsolescence notices or alternate recommendations provided by Texas Instruments before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 5 V reference with 1% accuracy is required in a SOT-23 package. Consider the 150 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 15 mA maximum shunt current capability against load requirements. Compare against higher precision alternatives if tighter tolerances are necessary for the specific application context.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references. The LM4040 series offers various fixed voltage options and accuracy grades, all sharing similar low-power characteristics and compact packaging. This specific variant provides a 5 V output with standard precision, fitting into the broader portfolio of Texas Instruments' power management solutions for general-purpose reference applications.

Replacement Considerations

Official documentation indicates LM4040CEM3-5.0/NOPB as an alternate recommendation for the LM4040CEM3-50 variant. Verify cross-compatibility with other LM4040 series parts based on voltage, accuracy, and package specifications before substitution.