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Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.225V
- Voltage - Output (Max)：-
- Current - Output：12 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 TL4051A12IDBZR is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 50ppm/°C. It requires a minimum cathode current of 65µA and supports a maximum output current of 12mA. The component is housed in a SOT-23-3 surface-mount package.
Feature Summary
- Provides stable fixed output voltage without requiring external capacitors for stability across all capacitive loads
- Delivers low output noise performance suitable for precision applications
- Offers high initial accuracy and low temperature coefficient for reliable operation over wide temperature ranges
Applications
- Data acquisition systems
- Portable instrumentation
- Battery-powered equipment
- Precision audio circuits
Procurement Notes
Verify the specific suffix IDBZR corresponds to the SOT-23-3 tape and reel packaging configuration. Confirm that the A-grade designation matches the required ±0.1% initial accuracy specification. Ensure the industrial temperature range aligns with system thermal requirements before finalizing procurement orders.
Selection Notes
Select this component when a compact, low-power shunt reference is needed for fixed 1.225V applications. It is suitable for designs prioritizing space efficiency and minimal quiescent current consumption. Consider alternative grades if higher accuracy or extended temperature ranges are required for the specific application environment.
Part Context
This part belongs to the TL4051 family of micropower shunt voltage references from Texas Instruments. The family includes adjustable versions and various accuracy grades (A, B, C) alongside different temperature ratings. The TL4051 series is designed to replace older discrete reference solutions while maintaining compatibility with standard PCB footprints.
Replacement Considerations
Direct substitutes include other TL4051 variants with matching voltage and accuracy, such as TL4051B12IDBZR or TL4051C12IDBZR, provided the looser tolerance specifications meet design requirements.
