LM4132EMF-2.0

Voltage Reference Overview

The LM4132EMF-2.0 is a precision series voltage reference manufactured by Texas Instruments, formerly National Semiconductor. It provides a fixed output of 2.048 V with an initial accuracy of ±0.05% and a temperature coefficient of 20 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 power consumption with a typical operating current of 60 µA and includes a shutdown enable function. The component is housed in a SOT-23-5 surface-mount package and functions across a temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• High precision voltage regulation with ±0.05% initial accuracy
• Low temperature drift of 20 ppm/°C for stable performance
• Integrated shutdown enable control for power management
• Compact SOT-23-5 surface-mount packaging

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) references
• Data acquisition systems requiring high stability
• Battery-powered instrumentation circuits
• Industrial process control signal conditioning

Voltage Reference Procurement Notes

Verify the manufacturer designation carefully, as Texas Instruments acquired National Semiconductor. Ensure the part number suffix matches the required tolerance and package variant. Confirm RoHS compliance status through official documentation. Cross-reference datasheet revisions to ensure compatibility with existing design specifications before procurement.

Voltage Reference Selection Notes

Select this component when high accuracy and low drift are critical for system performance. Consider the 20 ppm/°C temperature coefficient for wide operating environments. Evaluate the 20 mA maximum shunt current against load requirements. Verify that the SOT-23-5 package fits the available PCB space constraints.

Voltage Reference Part Context

This device belongs to the LM4132 family of precision low dropout voltage references. It shares architectural similarities with other members like the LM4132AMF and LM4132BMF, differing primarily in accuracy grades and temperature coefficients. The family is designed for applications requiring small form factors and high precision in portable and industrial electronics.

Voltage Reference Replacement Considerations

Direct substitutes include LM4132AMF-2.0/NOPB and LM4132BMF-2.0/NOPB. These variants offer different accuracy levels and temperature coefficients while maintaining pin compatibility. Verify specific electrical parameters against application requirements before substitution.