LM4040AIM3-2.1+T

$3.60

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

SKU:6468020b2dd2 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 ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：Automotive
Qualification：AEC-Q100

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LM4040AIM3-2.1+T

Overview

The LM4040AIM3-2.1+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 0.1% and a maximum temperature coefficient of 100ppm/°C. The device operates within a temperature range of -40°C to +85°C and supports a shunt current capability from 60μA to 15mA. It is housed in a subminiature 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.
No external stabilizing capacitor required while ensuring stability with any capacitive load.

Applications

Portable, Battery-Powered Equipment
Notebook Computers
Cell Phones
Industrial Process Controls

Procurement Notes

Verify the specific suffix '+T' indicates tape and reel packaging when sourcing. Confirm that the 'I' designation aligns with the industrial temperature range (-40°C to +85°C) rather than the extended range variant. Ensure the ordering part number matches the exact 2.048V output requirement for your circuit design.

Selection Notes

Select this component when space constraints favor the SOT23 package over the smaller SC70 option. Choose the 'A' grade for the highest initial accuracy (0.1%) and verify that the 100ppm/°C temperature coefficient meets system drift requirements. Ensure the supply voltage allows for sufficient headroom to maintain the minimum 60μA shunt current.

Part Context

This device belongs to the LM4040 family of micropower shunt voltage references. It utilizes the bandgap principle to produce a stable, accurate voltage similar to an ideal Zener diode. The family offers various fixed voltages and accuracy grades, making it suitable for applications requiring high precision in a compact form factor.