LM4132EMF-2.5/NOPB

Voltage Reference Overview

The LM4132EMF-2.5/NOPB is a precision series voltage reference manufactured by Texas Instruments, formerly National Semiconductor. It provides a fixed output of 2.5V with an initial accuracy of ±0.5% and a temperature coefficient of 30 ppm/°C. The device operates within an input voltage range of 3.4V to 5.5V and supports a maximum shunt current of 20mA. It features low power consumption with a supply current of 60µA typical and 100µA maximum. The component is housed in a SOT-23-5 package and functions across a temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Integrated shutdown enable functionality for power management
• Low noise performance suitable for sensitive analog circuits
• Compact surface-mount packaging for space-constrained designs

Voltage Reference Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing stable reference voltages

Voltage Reference Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance. Ensure the package type matches the required SOT-23-5 footprint for PCB layout compatibility. Check datasheet revisions for any pinout or electrical characteristic updates.

Voltage Reference Selection Notes

Select this component when a fixed 2.5V reference with moderate precision (±0.5%) is required. Consider the 30 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 60µA quiescent current against system power budgets. Verify that the 20mA load capability meets downstream circuit requirements.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower series voltage references. The family offers various fixed output voltages and accuracy grades. The LM4132 series is designed for applications where low cost, small size, and low power are critical. It serves as a standard reference solution in general-purpose analog signal processing.

Voltage Reference Replacement Considerations

Direct substitutes include other LM4132 variants with different output voltages such as LM4132EMF-3.0/NOPB or LM4132EMF-2.0/NOPB, provided the voltage requirement changes. Cross-reference with LM4132BMFX or LM4132AMFX series for tighter accuracy specifications if needed.