LM4128BMFX-1.8/NOPB

Voltage Reference Overview

The LM4128BMFX-1.8/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments, featuring an output voltage of 1.8 V with an initial accuracy of 0.2%. It operates within a temperature range of -40°C to +125°C and exhibits a temperature coefficient of 100 ppm/°C. The device supports a maximum shunt current of 20 mA and a maximum input voltage of 6 V. Packaged in a SOT-23-5 surface-mount case, it draws a typical operating supply current of 60 µA.

Voltage Reference Feature Summary

• Provides stable reference voltage with high initial accuracy
• Designed for low power consumption applications
• Capable of operation across extended industrial temperature ranges

Voltage Reference Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise voltage references
• Microcontroller analog-to-digital converter reference inputs

Voltage Reference Procurement Notes

Verify the specific suffix 'BMFX' corresponds to the required accuracy grade (0.2%) and reel packaging configuration. Confirm that the 'NOPB' designation indicates lead-free compliance and RoHS adherence as per the manufacturer's latest documentation. Ensure the ordering part number matches the exact electrical specifications required for the design.

Voltage Reference Selection Notes

Select this component when a 1.8 V reference with 0.2% initial accuracy is required in a compact SOT-23-5 package. It is suitable for designs prioritizing low quiescent current alongside moderate precision. Consider alternative accuracy grades if tighter tolerance or lower temperature coefficients are necessary for the specific application requirements.

Voltage Reference Part Context

This component belongs to the LM4128 family of precision micropower series voltage references from Texas Instruments. The family offers various output voltages and accuracy grades, all sharing similar low-power characteristics and compact packaging options designed for space-constrained electronic circuits.

Voltage Reference Replacement Considerations

LM4128AMFX-1.8/NOPB offers higher initial accuracy (0.1%). LM4128DMFX-1.8/NOPB provides standard accuracy (1%). Verify pinout compatibility and thermal performance before substituting.