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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% 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 LM4040C25IDBZT is a precision shunt voltage reference manufactured by Texas Instruments, housed in an SOT-23-3 surface-mount package. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 150 PPM/°C. Electrical specifications include a maximum shunt current of 15 mA and a minimum operating current of 68 µA.
Feature Summary
- Provides stable 2.5 V reference voltage with high initial accuracy
- Operates reliably across extended industrial temperature ranges
- Designed for low-power applications with minimal quiescent current
Applications
- Portable instrumentation requiring precise voltage references
- Battery-powered measurement systems
- Data acquisition circuits
Procurement Notes
Verify the specific suffix IDBZT confirms the SOT-23-3 package and tape-and-reel or cut-tape availability. Confirm RoHS compliance status through official manufacturer documentation. Check for obsolescence notices as some LM4040 variants face end-of-life status. Ensure design-in compatibility with required thermal and electrical constraints before ordering.
Selection Notes
Select this component when a 2.5 V reference with ±0.5% tolerance is required in a compact SOT-23-3 footprint. Consider the 150 PPM/°C temperature coefficient for thermal stability needs. Verify that the 68 µA minimum current requirement fits the circuit biasing design. Compare against other LM4040 variants if different voltages or accuracies are needed.
Part Context
This part belongs to the LM4040 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The C25 designation indicates the 2.5 V output variant with 0.5% initial accuracy. The IDBZT suffix specifies the SOT-23-3 surface-mount package configuration.
Replacement Considerations
LM4040C25IDBZTG4 is a lead-free version of the same device. LM4040C25ILP is a TO-92 through-hole alternative. Other LM4040 variants offer different voltages or accuracies but share similar functionality.
