LM4132DMFX-4.1/NOPB

Voltage Reference Overview

The LM4132DMFX-4.1/NOPB is a precision series voltage reference from Texas Instruments, housed in an SOT-23-5 surface-mount package. It provides a fixed output voltage of 4.1 V with an initial accuracy of 0.1%. The device features a temperature coefficient of 30 ppm/°C and operates within a supply voltage range up to 6 V. It draws a typical quiescent current of 60 µA and supports a maximum shunt current of 20 mA. The component functions reliably across an extended industrial temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Provides stable precision voltage referencing with low drift characteristics
• Integrates shutdown functionality for power management optimization
• Operates with minimal quiescent current consumption
• Designed for compact surface-mount applications

Voltage Reference Applications

• Portable instrumentation requiring precise voltage standards
• Battery-powered measurement systems
• Data acquisition circuits
• Calibration equipment references

Voltage Reference Procurement Notes

Verify the specific suffix 'DMFX' against official Texas Instruments documentation to confirm pinout compatibility and thermal performance specifications. Ensure the ordering part number matches the required accuracy grade and packaging format. Cross-reference the datasheet revision date to validate parameter consistency before integration into production designs.

Voltage Reference Selection Notes

Select this component when a 4.1 V reference is required in a small SOT-23-5 footprint. Consider the 0.1% initial accuracy and 30 ppm/°C drift for high-precision analog signal chains. Evaluate the 60 µA quiescent current against system power budgets. Confirm that the 20 mA shunt current capability meets load regulation requirements for the target application.

Voltage Reference Part Context

This device belongs to the LM4132 family of micropower shunt voltage references. It shares architectural similarities with other members like the LM4132BMFX and LM4132AMFX, differing primarily in accuracy grades and specific output voltages. The family is designed for space-constrained, battery-operated electronics requiring stable reference voltages.

Voltage Reference Replacement Considerations

LM4132BMFX-4.1/NOPB offers similar functionality with potentially different accuracy grades. LM4132AMFX-4.1/NOPB provides tighter initial accuracy specifications. Verify pinout compatibility and thermal characteristics when substituting these variants.