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Product Detailed Parameters
- Description：IC VREF SHUNT 1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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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Overview
The LM4040DIM3X-2.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, featuring a nominal output voltage of 2.048 V with an initial accuracy of 1%. It operates within a temperature range of -40°C to +85°C and exhibits a temperature coefficient of 150 ppm/°C. The device supports a maximum cathode current of 15 mA and draws a typical operating current of 70 µA. Packaged in a compact SOT-23-3 surface-mount format, it provides stable reference performance for precision analog circuits.
Feature Summary
- Micropower operation with low quiescent current consumption suitable for battery-powered applications
- High precision voltage reference with 1% initial accuracy and stable thermal performance
- Compact SOT-23-3 surface-mount package designed for space-constrained PCB layouts
Applications
- Portable instrumentation requiring precise voltage references
- Battery-operated measurement systems
- Data acquisition channels needing stable reference voltages
Procurement Notes
Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific packaging configuration. Confirm the SOT-23-3 footprint matches your design requirements. Check the latest datasheet for any updates regarding temperature coefficients or electrical characteristics before finalizing procurement specifications.
Selection Notes
Select this component when a 2.048 V reference with 1% accuracy is required in a small surface-mount package. Ensure the application current does not exceed the 15 mA maximum cathode current limit. Consider the 150 ppm/°C temperature coefficient against system thermal stability requirements. Verify that the SOT-23-3 package dimensions fit the available board space.
Part Context
This device belongs to the LM4040-N series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades in both through-hole and surface-mount packages. The DIM3X variant specifically denotes the SOT-23-3 surface-mount option within this family.
Replacement Considerations
Direct substitutes include other LM4040 variants with matching 2.048 V output and SOT-23-3 packaging, such as LM4040CIM3X-2.0/NOPB. Verify pinout compatibility and electrical specifications before substitution.
