LM4050BIM3-4.1

Voltage Reference Overview

The LM4050BIM3-4.1 is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V at an initial tolerance of ±0.2%. It operates within an industrial temperature range of −40°C to 85°C and supports a maximum operating current of 15 mA. The device utilizes a small SOT-23 package (3 mm × 1.3 mm) and requires no external stabilizing capacitor for stability with capacitive loads.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort for high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Voltage Reference Procurement Notes

Verify the specific suffix and grade against the datasheet to confirm the exact voltage tolerance and temperature range. Ensure the ordering information matches the required package type and that the component meets the intended environmental specifications for the application.

Voltage Reference Selection Notes

Select this component when space-critical designs require a precise shunt reference without output capacitors. Consider the B-grade tolerance and industrial temperature range suitability. Evaluate the minimum operating current requirements against the system's quiescent current capabilities.

Voltage Reference Part Context

This part belongs to the LM4050-N series of precision micropower shunt voltage references. The series offers multiple fixed reverse breakdown voltages including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. All versions share similar low-drift characteristics and compact packaging options.

Voltage Reference Replacement Considerations

LM4050AIM3-4.1/NOPB

Voltage Reference FAQ

Does the LM4050BIM3-4.1 require an external capacitor for stability?

No, the design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the typical wideband noise specification for this device?

The typical wideband noise is 93 μVrms measured between 10 Hz and 10 kHz at an operating current of 100 μA.