LM4132BMFX-4.1/NOPB

Voltage Reference Overview

The LM4132BMFX-4.1/NOPB is a precision series voltage reference manufactured by Texas Instruments, housed in a surface-mount SOT-23-5 package. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.1%. The device features a temperature coefficient of 30 ppm/°C and supports a maximum shunt current of 20 mA. It operates within an input voltage range up to 6 V and functions reliably across a temperature range from -40°C to +125°C. Quiescent current consumption is specified at 60 µA.

Voltage Reference Feature Summary

• Provides stable precision voltage reference output
• Includes shutdown enable functionality for power management
• Designed for low-power applications with minimal quiescent current

Voltage Reference Applications

• Portable instrumentation requiring precise voltage standards
• Battery-powered measurement systems
• Data acquisition systems needing accurate reference sources

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB and FX to ensure correct packaging and lead-free compliance. Confirm that the specific accuracy grade (B) matches design requirements. Check datasheet specifications for thermal performance and load regulation under actual operating conditions before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when a 4.096 V reference with 0.1% initial accuracy is required. Consider the SOT-23-5 package for space-constrained designs. Ensure input voltage remains below 6 V and shunt current does not exceed 20 mA. Evaluate thermal dissipation capabilities within the -40°C to +125°C operating range for environmental suitability.

Voltage Reference Part Context

This device belongs to the LM4132 family of micropower shunt voltage references. It integrates a bandgap reference circuit with an LDO structure to achieve high precision. The BMF variant specifically denotes the B-grade accuracy and SOT-23-5 surface mount packaging. It serves as a critical reference element in analog signal chains where stability and low drift are essential.

Voltage Reference Replacement Considerations

LM4132AMFX-4.1/NOPB offers higher accuracy (0.05%). LM4132EMFX-4.1/NOPB provides lower cost with 0.5% accuracy. LM4132DMFX-4.1/NOPB offers 0.2% accuracy. All share identical pinouts and electrical characteristics except for initial accuracy grades.