LM4040BEM3-2.1+T

$2.88

Description：IC VREF SHUNT 2.048V SOT23
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:c49d09293940 Category: Voltage Reference Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 2.048V SOT23
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.048V
Voltage - Output (Max)：-
Current - Output：15 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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LM4040BEM3-2.1+T

Overview

The LM4040BEM3-2.1+T is a precision, two-terminal shunt mode bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse-breakdown output voltage of 2.048V with an initial accuracy of 0.2%. The device features a maximum temperature coefficient of 100ppm/°C and operates within the industrial temperature range of -40°C to +125°C. It utilizes a 3-pin SOT23 surface-mount package.

Feature Summary

Laser-trimmed resistors ensure precise initial accuracy across multiple grades.
Low dynamic impedance maintains stable reverse breakdown voltage over wide operating currents.
Stable operation guaranteed without external stabilizing capacitors under any capacitive load.

Applications

Portable, battery-powered equipment
Notebook computers
Cell phones
Industrial process controls

Procurement Notes

Verify that the specific part number matches the required electrical specifications, including the 2.048V output voltage, 0.2% initial accuracy grade, and extended temperature range designation. Confirm the package type is SOT23-3 and check for RoHS compliance indicators in the ordering suffix. Ensure compatibility with the intended circuit design regarding shunt current limits and thermal dissipation requirements.

Selection Notes

Select this component when space constraints favor the SOT23 package over the smaller SC70 variant while maintaining high precision. The B-grade offers a balance between tight tolerance and cost-effectiveness compared to the A-grade. Consider the 100ppm/°C temperature coefficient for applications requiring stability across the full industrial temperature range.

Part Context

This component belongs to the LM4040 family of improved precision micropower shunt voltage references. The family includes various output voltages and accuracy grades (A, B, C, D) packaged in both SOT23 and SC70 formats. The 'E' suffix indicates the extended temperature range capability up to +125°C, distinguishing it from the standard industrial range parts.