LM4040DEM3-2.0

$1.04

Description：IC VREF SHUNT 1% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk

SKU:2953878b21a8 Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 1% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk
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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LM4040DEM3-2.0

Overview

The LM4040DEM3-2.0 is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable DC voltage levels. It operates within an extended temperature range of -40°C to +85°C and delivers a nominal output voltage of 2.048 V. The device features an initial accuracy of 1% and a temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and is housed in a compact SOT-23 surface-mount package.

Feature Summary

Provides precise micropower shunt voltage regulation with low quiescent current consumption.
Ensures stable performance across industrial temperature ranges with defined thermal drift characteristics.
Utilizes a compact SOT-23 surface-mount package for efficient PCB layout integration.

Applications

Portable battery-powered instrumentation systems
Data acquisition and measurement circuits
Microcontroller analog-to-digital converter references

Procurement Notes

Verify the specific suffix 'DEM3' against the official datasheet to confirm the exact tolerance and temperature grade. Ensure the ordering part number matches the required accuracy specifications for your design. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement.

Selection Notes

Select this component when a fixed 2.048 V reference is needed with moderate precision requirements. Consider the 150 ppm/°C temperature coefficient for thermal stability needs. Evaluate the SOT-23 footprint constraints against available board space. Compare against higher accuracy variants if tighter tolerances are required for the application.

Part Context

This device belongs to the LM4040-N family of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The LM4040DEM3-2.0 specifically targets cost-sensitive applications requiring reliable voltage referencing in small form factors.

Replacement Considerations

Public documentation indicates LM4040CEM3-5.0/NOPB as an alternate for related NRND parts, but direct substitution requires verifying pin compatibility and electrical parameters. Consult the official replacement guide for confirmed equivalents.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.