LM4050BIM3-4.1/NOPB

Product Overview

The LM4050BIM3-4.1/NOPB from Texas Instruments is a shunt voltage reference that provides a fixed 4.096 V output. It uses a surface-mount SOT-23-3 package and is specified for operation from -40°C to 85°C ambient. The device combines a ±0.2% output tolerance with a 50 ppm/°C temperature coefficient, giving a stable reference point for analog circuits that need a consistent voltage level. Its 93 µVrms noise level over 10 Hz to 10 kHz, 15 mA output current rating, and 73 µA cathode current are relevant when assessing accuracy, loading, and bias conditions in compact board layouts.

Key Features

• Shunt voltage reference architecture with a fixed 4.096 V output.
• Output tolerance of ±0.2% and temperature coefficient of 50 ppm/°C.
• Specified noise of 93 µVrms from 10 Hz to 10 kHz.
• 15 mA output current rating and 73 µA cathode current.
• Operating temperature range of -40°C to 85°C (TA).
• Surface-mount TO-236-3, SC-59, SOT-23-3 package.

Applications

• Providing a fixed reference voltage for analog-to-digital converter inputs.
• Stabilizing bias points in sensor signal-conditioning front ends.
• Supporting low-current bias requirements in compact measurement circuits.

Design & Procurement Notes

Designers selecting this reference should compare the 4.096 V fixed output against the required system reference level and verify that the ±0.2% tolerance and 50 ppm/°C coefficient meet calibration accuracy targets across the -40°C to 85°C ambient range. The 93 µVrms noise specification is useful when evaluating sensitive analog measurements, while the 15 mA output current rating and 73 µA cathode current should be considered when defining load and bias conditions. The SOT-23-3 surface-mount package supports compact layouts, but thermal management and PCB mounting conditions should be reviewed because the operating range is specified at ambient temperature.