LM4040DEM3X-2.5/NOPB

$0.49

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

SKU:c204d3e5950f 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)
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.5V
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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LM4040DEM3X-2.5/NOPB

Overview

The LM4040DEM3X-2.5/NOPB is a micropower shunt voltage reference with a fixed 2.5 V output. It features ±1% initial accuracy and a temperature coefficient of 150 ppm/°C. The device operates within a -40°C to +85°C range, drawing a cathode current of 70 µA. Maximum shunt current is 15 mA, with noise specified at 35 µVrms (10 Hz to 10 kHz). It is housed in a SOT-23-3 surface-mount package.

Feature Summary

Provides stable 2.5 V reference voltage with ±1% initial accuracy
Ultra-low operating current of 70 µa for power-constrained designs
Capable of driving capacitive loads without instability
Compact sot-23-3 surface-mount package design

Applications

Portable instrumentation requiring low power consumption
Battery-powered measurement systems
Data acquisition channels
Reference voltage sources for analog-to-digital converters

Procurement Notes

Verify the suffix 'DEM3X' corresponds to the specific accuracy grade and tape-and-reel packaging configuration. Confirm that the '-NOPB' designation ensures compliance with lead-free and RoHS standards as required by project specifications. Cross-reference the manufacturer part number against official distribution channels to ensure authenticity and traceability of the component batch.

Selection Notes

Select this component when a 2.5 V shunt reference with ±1% tolerance is required. The 150 ppm/°C temperature coefficient suits applications where moderate thermal stability is acceptable. Ensure the circuit design accommodates the 70 µA minimum operating current and 15 mA maximum sink capability. Verify that the SOT-23-3 footprint matches the PCB layout constraints.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references from Texas Instruments. The family offers various output voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. Different suffixes indicate varying accuracy grades and package types, such as SOT-23-3 or SOT-323-5L, allowing designers to choose based on space and precision requirements.