LM4128CMFX-2.0

Voltage Reference Overview

The LM4128CMFX-2.0/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments, housed in a compact SOT-23-5 package. It delivers a fixed output voltage of 2.048 V with an initial accuracy of 0.5%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 100 ppm/°C. Key electrical specifications include a maximum input voltage of 6 V, a maximum shunt current of 20 mA, and a quiescent supply current of 60 µA.

Voltage Reference Feature Summary

• Provides stable reference voltage with low power consumption suitable for battery-operated systems
• Ensures high precision through tight initial accuracy and controlled temperature drift
• Offers robust performance across extended industrial temperature ranges

Voltage Reference Applications

• Portable instrumentation requiring low power and high accuracy
• Battery-powered measurement devices
• Data acquisition systems needing precise voltage references

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as /NOPB and packaging options like CMF or DMF. Confirm that the specific variant matches the required output voltage and accuracy class. Check RoHS compliance status and ensure the component meets environmental regulations for your target market. Validate package type against PCB footprint requirements before ordering.

Voltage Reference Selection Notes

Select this component when a fixed 2.048 V reference is needed with moderate precision. Consider the 60 µA quiescent current for power-sensitive designs. Ensure the input voltage remains below the 6 V maximum limit. Evaluate thermal management needs given the operating temperature range up to 125°C. Compare with higher precision alternatives if tighter tolerance is required.

Voltage Reference Part Context

This part belongs to the LM4128 family of micropower series voltage references from Texas Instruments. The family includes various output voltages and accuracy grades. The LM4128 series is designed for applications requiring small size and low power consumption while maintaining stable reference performance over temperature variations.

Voltage Reference Replacement Considerations

LM4128CMF-2.0/NOPB is a direct equivalent without the 'X' suffix indicating reel packaging. LM4128DMF-2.0/NOPB offers the same electrical characteristics in a different package variant.