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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)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.225V
- Voltage - Output (Max)：-
- Current - Output：12 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：-
- Qualification：-
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Overview
The TL4051A12QDBZT is a precision 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 125°C and features a maximum temperature coefficient of 50ppm/°C. It requires a typical cathode current of 65µA and supports a maximum load current of 12mA. The component is housed in a SOT-23-3 package, ensuring stability across all capacitive loads without requiring external output capacitors.
Feature Summary
- Fixed 1.225V output with high initial accuracy
- Micropower operation suitable for battery applications
- Stable under all capacitive load conditions
Applications
- Data acquisition systems
- Portable instrumentation
- Battery-powered equipment
- Precision audio circuits
Procurement Notes
Verify the specific suffix QDBZT corresponds to the automotive-grade qualification and SOT-23-3 packaging configuration. Confirm that the A grade designation aligns with the required ±0.1% initial accuracy tolerance for the design. Ensure the extended temperature rating of -40°C to 125°C meets the environmental constraints of the target application before finalizing procurement.
Selection Notes
Select this component when a fixed 1.225V reference with high precision is required in a compact surface-mount package. The low quiescent current makes it ideal for energy-constrained designs. Consider the thermal performance and noise specifications relative to other grades in the TL4051 family to ensure cost-effectiveness while meeting system accuracy requirements.
Part Context
This part belongs to the TL4051 family of precision micropower shunt voltage references from Texas Instruments. The family offers various output voltages and accuracy grades, including adjustable options via external resistors. The TL4051 series is designed for applications demanding stable reference voltages with minimal power consumption and small form factors.
Replacement Considerations
TL4051A12IDBZR
FAQ
Does the TL4051A12QDBZT require an output capacitor for stability?
No, the device is stable under all capacitive load conditions and does not require an external output capacitor.
What is the maximum operating temperature for this component?
The maximum operating temperature is 125°C, as indicated by the 'Q' suffix denoting the extended temperature range.
