LM4040QDEM3-3.0/NOPB

$0.73

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

SKU:4aeb334ed9bd 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)：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：Automotive
Qualification：AEC-Q100

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LM4040QDEM3-3.0/NOPB

Overview

The LM4040QDEM3-3.0/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 an extended industrial temperature range of -40°C to +125°C. The device utilizes a SOT-23 package with three pins. Key electrical parameters include a maximum temperature coefficient of 70 ppm/°C, a typical low-frequency noise of 10 µVp-p, and an operating current of 10 µA at 25°C. It supports a maximum cathode current of 15 mA and maintains stability when driving capacitive loads.

Feature Summary

Provides stable reference voltage across the full industrial temperature range
Maintains stability under capacitive load conditions
Delivers ultra-low operating current for power efficiency
Offers high precision with minimal low-frequency noise

Applications

Portable battery-powered instrumentation systems
Data acquisition circuits requiring precise analog references
Microcontroller-based embedded systems
Handheld measurement devices

Procurement Notes

Verify that the specific suffix QDEM3 corresponds to the automotive-grade qualification and SOT-23 packaging configuration. Confirm the 3.0 V output voltage matches the design requirement. Ensure the component meets the required temperature range and accuracy specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component when a fixed 3.0 V reference is needed in a compact surface-mount package. It is suitable for applications demanding low quiescent current and high precision over a wide temperature span. Consider the ±1% tolerance and 70 ppm/°C drift characteristics against system accuracy requirements.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The 'Q' prefix typically indicates automotive-grade qualification, while 'DEM3' specifies the SOT-23 package and 3.0 V output variant. The series is designed for applications requiring stable voltage references in space-constrained environments.