LM4128AQ1MF2.0/NOPB

Voltage Reference Overview

The LM4128AQ1MF2.0/NOPB is an automotive-grade series precision voltage reference from Texas Instruments, housed in a SOT-23-5 package. It provides a fixed output voltage of 2.048 V with an initial accuracy of 0.1%. The device operates within a temperature range of -40°C to +125°C and features a maximum shunt current of 20 mA. It is qualified under AEC-Q100 standards for automotive applications.

Voltage Reference Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• High precision series voltage reference architecture
• Low power consumption suitable for battery-operated systems

Voltage Reference Applications

• Automotive data acquisition systems
• Precision analog-to-digital converter references
• Battery-powered instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free status and RoHS compliance as per manufacturer documentation. Confirm the 'A' grade designation matches the required 0.1% initial accuracy specification. Ensure the SOT-23-5 package type aligns with the target PCB footprint design constraints.

Voltage Reference Selection Notes

Select this component when automotive reliability and high precision are required in a compact surface-mount package. The 2.048 V output is suitable for driving ADCs requiring stable reference voltages. Consider the 6 V maximum input voltage limit when designing the supply circuitry to ensure safe operation margins.

Voltage Reference Part Context

This part belongs to the LM4128 family of precision voltage references. The 'AQ1' designation signifies automotive qualification and specific accuracy grades. The 'MF2.0' indicates the 2.048 V output variant in the SOT-23-5 package. This family is designed for applications demanding stability over temperature and time.

Voltage Reference Replacement Considerations

LM4128BQ1MF2.0/NOPB offers similar functionality with 0.2% accuracy. LM4128DQ1MF2.0 is a commercial grade alternative without automotive qualification. Verify pinout compatibility and thermal performance before substitution.