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Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- 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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Overview
The LM4040AIM3X-2.5 is a micropower shunt voltage reference from the LM4040-N series, manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.1% and a temperature coefficient of 100 ppm/°C. The device operates within a junction temperature range of -40°C to +85°C and supports a maximum shunt current of 15 mA. It is housed in a surface-mount SOT-23-3 package and is supplied in tape-and-reel format for automated assembly.
Feature Summary
- Micropower operation designed for low current consumption applications
- High precision performance with tight initial accuracy tolerance
- Shunt regulation architecture suitable for compact designs
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring stable reference voltages
- Handheld meters and test equipment
Procurement Notes
Verify component authenticity through authorized channels as counterfeit references exist. Confirm RoHS compliance status for specific manufacturing lots. Ensure ESD handling protocols are followed during storage and installation. Check datasheet revisions for any updates to electrical characteristics or recommended operating conditions prior to final design approval.
Selection Notes
Select this part when a 2.5 V reference with ±0.1% accuracy is required in a small SOT-23 footprint. Consider the 100 ppm/°C temperature coefficient for thermal stability needs. Evaluate power budget constraints against the micropower quiescent current. Compare against LM4040BIM3X-2.5 if slightly lower accuracy (0.2%) is acceptable for cost reduction.
Part Context
This component belongs to the LM4040-N family of precision micropower shunt voltage references. It shares functional similarities with other variants in the series but differs in accuracy grade and temperature coefficient specifications. The 'AIM3X' suffix indicates the A-grade accuracy, SOT-23 package, and tape-and-reel packaging configuration.
Replacement Considerations
LM4040AIM3X-2.5/NOPB is the lead-free equivalent. LM4040BIM3X-2.5 offers 0.2% accuracy. LM4040EIM3-2.5/NOPB provides similar functionality in SOT-23-3.
