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Product Detailed Parameters
- Description：LM4040-N-Q1 - AUTOMOTIVE 100-PPM
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- 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：Automotive
- Qualification：AEC-Q100
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Overview
The LM4040QDEM3-2.5/NOPB is a micropower shunt voltage reference from Texas Instruments, delivering a fixed output of 2.5 V. It features an initial accuracy of 1% and a temperature coefficient of 150 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and supports a maximum shunt current of 15 mA. Packaged in a compact SOT-23-3 surface-mount format, it is qualified under AEC-Q100 standards for automotive reliability.
Feature Summary
- AEC-Q100 qualified for automotive applications
- Micropower shunt voltage reference design
- Extended high-temperature operation up to 125°C
Applications
- Automotive electronic systems requiring stable voltage references
- Portable battery-powered instrumentation
- Data acquisition systems with precision requirements
Procurement Notes
Verify the specific suffix 'DEM3' against official Texas Instruments documentation to confirm package details and availability status. Ensure the component meets AEC-Q100 qualification requirements if used in automotive designs. Cross-reference the full part number with manufacturer datasheets to validate electrical parameters and operating conditions before procurement.
Selection Notes
Select this component when automotive-grade reliability and extended temperature performance are required. The 1% accuracy and 150 ppm/°C stability suit precision applications where standard commercial grades are insufficient. Consider the SOT-23-3 footprint for space-constrained PCB layouts requiring surface-mount integration.
Part Context
This part belongs to the LM4040-N series of micropower shunt voltage references. The series offers various fixed output voltages and accuracy grades. The Q prefix indicates automotive qualification, while the DEM3 suffix specifies the SOT-23-3 surface-mount package configuration provided by Texas Instruments.
Replacement Considerations
Consult official substitution guides for equivalent automotive-qualified shunt references. Verify that alternative components match the 2.5 V output, 1% accuracy, and 125°C operating temperature limits.
