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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)：2.5V
- 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 LM4040DIM3-2.5/NOPB is a micropower shunt voltage reference from Texas Instruments, housed in a surface-mount SOT-23 package. It provides a fixed output voltage of 2.5 V with an initial accuracy tolerance of ±1%. The device features a temperature coefficient of 150 ppm/°C and operates within a junction temperature range of -40°C to +85°C. Key electrical specifications include a maximum cathode current of 15 mA, a minimum operating current of 70 µA, and a noise level of 35 µVrms measured between 10 Hz and 1 kHz.
Feature Summary
- Provides stable precision voltage regulation through a two-terminal shunt architecture suitable for compact designs.
- Optimized for low power consumption with micropower operation characteristics ideal for battery-powered systems.
- Delivers consistent performance across industrial temperature ranges with defined thermal drift coefficients.
Applications
- Portable instrumentation requiring precise analog-to-digital converter references
- Battery-operated measurement devices needing low quiescent current sources
- Industrial control systems utilizing microprocessor-based monitoring circuits
Procurement Notes
Verify the specific suffix configuration against official Texas Instruments documentation to ensure compatibility with your design requirements. Confirm that the component meets all necessary environmental standards and regulatory compliance for your target market before finalizing procurement decisions.
Selection Notes
Select this component when a fixed 2.5 V reference is required in a small SOT-23 footprint. Consider the ±1% initial accuracy and 150 ppm/°C temperature coefficient against system tolerance needs. Ensure the 70 µA minimum operating current aligns with your biasing circuit capabilities.
Part Context
This part belongs to the LM4040-N series of precision micropower shunt voltage references manufactured by Texas Instruments. The series offers various fixed voltage options and accuracy grades, providing designers with flexible solutions for reference applications in power management and signal conditioning contexts.
Replacement Considerations
LM4040DIM3X-2.5/NOPB serves as a verified equivalent variant within the same product family, offering identical functional specifications and pinout compatibility for direct substitution in existing designs.
