LM4128DMFX-2.0/NOPB

Voltage Reference Overview

The LM4128DMFX-2.0/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring an output voltage of 2.048 V with an initial accuracy of 1%. It operates within a supply voltage range up to 6 V and draws a typical quiescent current of 60 uA. The device supports a maximum shunt current of 20 mA and maintains stability across a temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, it offers a temperature coefficient of 100 PPM/°C, suitable for applications requiring stable reference voltages in space-constrained designs.

Voltage Reference Feature Summary

• Provides a fixed 2.048 V precision reference output with 1% initial accuracy
• Operates with ultra-low power consumption at 60 uA quiescent current
• Maintains thermal stability with a 100 PPM/°C temperature coefficient
• Designed for high-voltage operation with a maximum input voltage of 6 V

Voltage Reference Applications

• Portable battery-powered instrumentation systems
• Data acquisition and signal conditioning circuits
• Microcontroller analog-to-digital converter references
• Temperature sensing and monitoring interfaces

Voltage Reference Procurement Notes

Verify the specific suffix 'DMFX' confirms the 2.048 V output variant and SOT-23-5 package configuration. Ensure the 'NOPB' designation indicates lead-free and RoHS compliance status as required by your assembly specifications. Cross-reference the manufacturer part number against official distributor catalogs to confirm availability and authenticity before procurement.

Voltage Reference Selection Notes

Select this component when a stable 2.048 V reference is required in low-power portable devices. The SOT-23-5 package minimizes board space usage compared to larger alternatives. Consider the 1% initial accuracy and 100 PPM/°C drift characteristics against system tolerance requirements. Verify that the 6 V maximum input voltage aligns with the available supply rails in the target circuit design.

Voltage Reference Part Context

This device belongs to the LM4128 series of precision micropower shunt voltage references from Texas Instruments. The series is designed to replace bulkier Zener diodes in modern electronic designs. It integrates bandgap reference technology to deliver stable performance over wide temperature ranges. The family includes various fixed output voltages and accuracy grades to suit diverse application needs.

Voltage Reference Replacement Considerations

LM4128AMFX-2.0/NOPB: Offers higher 0.1% initial accuracy with identical voltage and package.

Voltage Reference FAQ

What is the maximum operating voltage for the LM4128DMFX-2.0/NOPB?

The maximum series input voltage is 6 V.

Does this component support automotive qualification?

No, the standard LM4128DMFX-2.0/NOPB is not AEC-Q100 qualified; automotive versions use the AQ1 suffix.