LM4040BEX3-5.0

$1.10

Description：PRECISION MICROPOWER SHUNT VREF
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Bulk

SKU:a26b91268390 Category: Voltage Reference Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：PRECISION MICROPOWER SHUNT VREF
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：15 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-70, SOT-323
Supplier Device Package：SC-70-3
Grade：Automotive
Qualification：AEC-Q100

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LM4040BEX3-5.0

Overview

The LM4040BEX3-5.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5.0 V with an initial accuracy of ±0.2%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 70 ppm/°C. It utilizes an SOT-23-3 (SC-70-3) surface-mount package and supports a maximum shunt current of 15 mA.

Feature Summary

Provides stable fixed output voltage across industrial temperature ranges
Ultra-low operating current suitable for power-restricted designs
Capable of driving capacitive loads without instability
Compact surface-mount packaging for space-constrained applications

Applications

Portable instrumentation requiring low power consumption
Battery-powered measurement systems
Data acquisition systems needing precise voltage references
Handheld devices with limited power budgets

Procurement Notes

Verify the specific suffix 'EX3' against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints, as SC-70-3 dimensions may differ from standard SOT-23 variants. Confirm RoHS compliance status through the latest datasheet revision before procurement.

Selection Notes

Select this component when a 5.0 V reference with ±0.2% accuracy is required in a compact SOT-23-3 package. Consider the 70 ppm/°C temperature coefficient for thermal stability requirements. Verify that the 15 mA maximum shunt current meets the circuit's load demands while maintaining the ultra-low quiescent current advantage.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references. The family offers various accuracy grades (A, B, C, D) and multiple fixed voltage options including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. The LM4040 series is designed for high precision and low power operation in portable and battery-driven applications.