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Product Detailed Parameters
- Description：IC VREF SHUNT 0.2% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：4.096V
- 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 LM4040BIM3-4.1/NOPB is a micropower shunt voltage reference from Texas Instruments, housed in a compact SOT-23-3 surface-mount package. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.2%. The device features a temperature coefficient of 150 ppm/°C and supports a maximum shunt current of 15 mA. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Micropower shunt topology for low standby current consumption
- High precision with 0.2% initial accuracy tolerance
- Compact SOT-23-3 surface-mount packaging
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring stable references
- Microcontroller analog-to-digital converter (ADC) references
Procurement Notes
Verify the specific suffix 'NOPB' indicates lead-free composition and RoHS compliance as per manufacturer standards. Confirm availability status, as some listings indicate limited supply or end-of-life conditions for related variants. Ensure the ordering part number matches the required accuracy grade and temperature coefficient specifications for your design requirements.
Selection Notes
Select this component when a precise, low-cost shunt reference is needed in a small footprint. The 0.2% accuracy suits applications demanding tighter tolerances than standard 1% parts. Verify that the circuit can accommodate the minimum operating current and that the 15 mA maximum shunt current rating is sufficient for the load regulation requirements.
Part Context
This part belongs to the LM4040-N series of precision micropower shunt voltage references. The family offers various fixed output voltages and accuracy grades in the same SOT-23-3 package, allowing for design flexibility while maintaining consistent board space and thermal characteristics across different voltage reference needs.
Replacement Considerations
LM4040BIM3-4.1 is a direct pin-compatible alternative. LM4040CIM3-4.1 offers lower accuracy (0.5%). TL4050BIM3-4.1 provides improved temperature coefficient performance.
