LM4040DEM3X-3.0/NOPB

$0.37

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

SKU:8e11500b0039 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)
Output Type：Fixed
Voltage - Output (Min/Fixed)：3V
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-3.0/NOPB

Overview

The LM4040DEM3X-3.0/NOPB is a micropower shunt voltage reference from Texas Instruments, providing a fixed 3.0 V output. It features ±1% initial accuracy and operates within a temperature range of -40°C to +85°C. The device utilizes an SOT-23-3 surface-mount package with a maximum shunt current of 15 mA and a typical operating current of 70 µA. Its temperature coefficient is 150 ppm/°C, and it exhibits low noise characteristics.

Feature Summary

Provides stable reference voltage in a compact SOT-23-3 package
Ultra-low operating current suitable for power-constrained designs
High precision with ±1% initial accuracy at 25°C
Capable of driving capacitive loads without instability

Applications

Portable battery-powered instrumentation
Data acquisition systems requiring precise voltage references
Handheld meters and test equipment
ADC and DAC reference inputs

Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free composition and RoHS compliance as per manufacturer standards. Confirm the 'DIM3X' designation corresponds to the SOT-23-3 package and reel packaging format. Ensure the design accounts for the 15 mA maximum shunt current limit during thermal management planning.

Selection Notes

Select this component when a fixed 3.0 V reference with ±1% tolerance is required in a small footprint. It is appropriate for applications prioritizing low quiescent current over ultra-high precision. Consider the 150 ppm/°C temperature coefficient against environmental stability requirements. Compare with higher accuracy variants if tighter tolerances are necessary.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. Different letter codes denote accuracy grades, with 'D' indicating ±1% tolerance. The family is designed for industrial temperature ranges and space-saving applications.