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Product Detailed Parameters
- Description：VOLTAGE REFERENCE
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：8.192V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM4040CIMX-8.2 is a micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 8.2 V with an initial accuracy of 0.5%. The device operates within an industrial temperature range of -40°C to +125°C and features a maximum temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and utilizes the SOT-23-3L surface-mount package.
Feature Summary
- Provides stable reference voltage across industrial temperature ranges
- Designed for space-constrained applications via compact packaging
- Operates with low quiescent current suitable for power-limited systems
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring precise voltage benchmarks
- Handheld measurement devices
Procurement Notes
Verify the manufacturer status as National Semiconductor was acquired by Texas Instruments. Confirm that the specific suffix indicates the correct voltage tolerance and package type. Ensure the component meets RoHS compliance requirements for your target market. Check for obsolescence notices or recommended new replacements on the official manufacturer website before finalizing procurement plans.
Selection Notes
Select this component when a fixed 8.2 V reference is required in a small footprint. The 0.5% accuracy suits general-purpose precision applications. Consider the 15 mA maximum current limit for load requirements. Verify thermal performance within the specified -40°C to +125°C range for harsh environments.
Part Context
This part belongs to the LM4040 family of micropower shunt references. The series offers various fixed voltages and accuracy grades. It is designed to replace older discrete reference solutions. The family emphasizes low power consumption and high stability for portable electronics.
Replacement Considerations
Check for direct equivalents from Texas Instruments such as the LM4040CIM3-8.2/NOPB. Verify pin compatibility and electrical specifications before substitution.
