LM4132EMFX-4.1/NOPB

Voltage Reference Overview

The LM4132EMFX-4.1/NOPB is a precision series voltage reference manufactured by Texas Instruments, formerly National Semiconductor. It provides a fixed output of 4.096 V with an initial accuracy of 0.1% and a temperature coefficient of 30 ppm/°C. The device operates within an input voltage range up to 6 V and supports a maximum shunt current of 20 mA. It features low operating power consumption of 60 µA and functions across a temperature range of -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, it integrates shutdown capability for power management.

Voltage Reference Feature Summary

• Provides high-precision fixed voltage output with tight initial accuracy tolerances
• Features low temperature coefficient for stable performance across wide thermal ranges
• Integrates shutdown enable functionality to minimize power consumption during idle states
• Utilizes compact SOT-23-5 surface-mount packaging for space-constrained designs

Voltage Reference Applications

• Portable instrumentation requiring low power precision references
• Battery-powered measurement systems needing stable voltage baselines
• Data acquisition systems utilizing analog-to-digital conversion
• Industrial process control loops requiring accurate sensor excitation

Voltage Reference Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor, when sourcing this component. Confirm the specific suffix /NOPB indicates lead-free and RoHS compliance status. Ensure the package type matches the required SOT-23-5 footprint for PCB layout compatibility. Cross-reference the datasheet revision to confirm electrical characteristics align with design requirements.

Voltage Reference Selection Notes

Select this component when a fixed 4.096 V reference with 0.1% initial accuracy is required. Consider the 30 ppm/°C temperature coefficient for applications demanding stability over varying environmental conditions. Evaluate the 60 µA quiescent current against system power budgets. Verify that the SOT-23-5 package dimensions fit the available board space constraints.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower shunt voltage references. The family offers various fixed output voltages and accuracy grades. The LM4132 series is designed for applications requiring high precision in small packages. It serves as a drop-in replacement for older discrete reference solutions in modern electronics.

Voltage Reference Replacement Considerations

LM4132BMFX-4.1/NOPB offers similar specifications with potentially different accuracy grades. LM4132AMFX-4.1/NOPB provides higher precision options within the same package. Verify pinout compatibility and thermal performance when substituting these variants.