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Product Detailed Parameters
- Description：IC VREF SHUNT 2.5V SOT23-3
- 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 LM4040DEM3-2.5/S4000169 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a maximum shunt current of 15 mA. It is housed in a surface-mount SOT-23 package, designed for applications requiring stable voltage regulation in compact electronic systems.
Feature Summary
- Provides a fixed 2.5V reference output with high precision
- Operates as a two-terminal shunt voltage reference
- Designed for low-power consumption in portable devices
Applications
- Portable instrumentation circuits
- Battery-powered measurement equipment
- Data acquisition systems requiring stable reference voltages
Procurement Notes
Verify the specific suffix /S4000169 against official Texas Instruments documentation to confirm it denotes a standard commercial grade variant or specific packaging configuration. Ensure compatibility with existing PCB footprints for the SOT-23-3 package. Cross-reference with the LM4040DEM3-2.5/NOPB datasheet for electrical equivalence if sourcing alternatives.
Selection Notes
Select this component when a stable 2.5V reference is required in space-constrained designs. The SOT-23 package offers a small footprint suitable for dense layouts. Consider the ±1% initial accuracy and temperature stability requirements relative to the application's precision needs. Verify that the 15 mA maximum shunt current meets the circuit's biasing requirements.
Part Context
This part belongs to the LM4040 family of precision micropower shunt voltage references from Texas Instruments. The family includes various output voltages and packages, such as TO-92 and SOT-23. The DEM3 suffix typically indicates a tape-and-reel packaging format, while the /S4000169 may denote a specific distributor or manufacturing lot code.
Replacement Considerations
The LM4040DEM3-2.5/NOPB is a direct equivalent offering identical electrical specifications and pinout. Verify package compatibility before substitution.
