LM4132EMF-2.0/NOPB

Voltage Reference Overview

The LM4132EMF-2.0/NOPB is a precision series voltage reference manufactured by Texas Instruments, utilizing the SOT-23-5 surface-mount package. It provides a fixed output voltage of 2.048 V with an initial accuracy tolerance of ±0.5%. The device operates within a supply voltage range of 3.4 V to 5.5 V and supports a maximum shunt current of 20 mA. Key performance metrics include a temperature coefficient of 30 ppm/°C and a quiescent current of 60 µA. It 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 suitable for high-accuracy applications.
• Integrates a shutdown enable feature to minimize power consumption when the circuit is inactive.
• Delivers robust performance over wide operating temperature ranges without requiring external compensation components.

Voltage Reference Applications

• Portable instrumentation systems requiring precise analog-to-digital conversion references
• Battery-powered measurement devices where low quiescent current is critical
• Data acquisition systems needing stable reference voltages for signal conditioning

Voltage Reference Procurement Notes

Verify that the ordering suffix matches the required output voltage and tolerance grade exactly. Confirm the package type corresponds to the design footprint requirements. Ensure the manufacturer designation aligns with current production sources, as National Semiconductor assets are managed by Texas Instruments. Check RoHS compliance status for specific regional regulatory needs.

Voltage Reference Selection Notes

Select this component when a compact SOT-23-5 form factor is required alongside moderate precision specifications. Consider the 20 mA load capability against system current demands. Evaluate the 30 ppm/°C temperature coefficient against environmental stability requirements. Compare input voltage headroom constraints with available supply rails.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower series voltage references designed for space-constrained applications. The 'E' suffix denotes the ±0.5% accuracy grade, while 'M' indicates the SOT-23-5 package. The 'NOPB' suffix signifies lead-free construction and absence of specific packaging modifications. These devices serve as drop-in replacements for older generation references in portable electronics.

Voltage Reference Replacement Considerations

LM4132AMF-2.0/NOPB offers higher accuracy at ±0.05% tolerance. LM4132BMF-2.0/NOPB provides ±0.1% accuracy. LM4132CMF-2.0/NOPB delivers ±0.2% accuracy. All variants share identical pinouts and electrical characteristics except for initial accuracy and temperature coefficient variations.