LM4040C20QDBZR

$0.94

Description：IC VREF SHUNT 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk

SKU:1e4ce6b5faee Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 0.5% 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 ~ 85°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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LM4040C20QDBZR

Overview

The LM4040C20QDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.048 V with an initial accuracy of 0.5%. The device operates within a temperature range of -40°C to +125°C and features a maximum shunt current of 15 mA. It is housed in a surface-mount SOT-23 package with three pins. This component meets the AEC-Q100 automotive qualification standard, ensuring reliability for demanding environments.

Feature Summary

Automotive-grade reliability certified under AEC-Q100 standards
High precision with 0.5% initial accuracy tolerance
Micropower operation suitable for battery-powered applications
Wide industrial and automotive temperature range capability

Applications

Automotive electronic systems requiring stable voltage references
Portable battery-operated equipment due to low power consumption
Data acquisition systems needing precise analog-to-digital conversion references
Industrial control circuits operating in harsh thermal environments

Procurement Notes

Verify that the specific suffix QDBZR corresponds to the required automotive grade and tape-and-reel packaging configuration. Confirm the 2.048V output variant matches the circuit design requirements. Ensure compatibility with the intended operating temperature range and check for any specific handling instructions related to the SOT-23 package during assembly processes.

Selection Notes

Select this component when automotive qualification is mandatory alongside high precision. The 2.048V output is ideal for systems requiring sub-2.5V references. Consider the SOT-23 package size constraints and the 15mA current limit. Compare against non-automotive grades if cost is critical but environmental robustness is less important.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed voltage options and accuracy grades. The 'Q' designation indicates automotive qualification, while 'DBZR' specifies the SOT-23 surface-mount package and reel packaging format. It serves as a stable reference for ADCs, DACs, and comparator circuits.