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Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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 TL4051A12IDBZRG4 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 +85°C and features a maximum temperature coefficient of 50ppm/°C. It requires a minimum operating current of 65µA and supports a maximum cathode current of 12mA. The component is housed in a SOT-23-3 surface-mount package.
Feature Summary
- Provides high-precision fixed output voltage with tight initial tolerance
- Operates stably across a wide range of load currents without external capacitors
- Features low noise and low temperature coefficient for stable performance
- Designed for compact applications using small surface-mount packaging
Applications
- Data acquisition systems
- Portable battery-powered equipment
- Precision measurement instruments
Procurement Notes
Verify the complete part number including the G4 suffix to confirm RoHS compliance and lead-free status. Ensure the ordering code matches the specific tape-and-reel quantity required for production. Confirm the temperature grade corresponds to industrial requirements. Validate the package type against PCB footprint specifications before procurement.
Selection Notes
Select this component when a fixed 1.225V reference with high accuracy is required in a small form factor. It is suitable for designs needing stability without output capacitance. Consider the 65µA minimum current requirement for power budget calculations. Evaluate the 50ppm/°C temperature coefficient against environmental conditions.
Part Context
This device belongs to the TL4051 family of micropower shunt references from Texas Instruments. The family offers various accuracy grades and output options, including adjustable versions. The TL4051 series is designed to replace larger, less efficient reference solutions in space-constrained electronic designs requiring reliable voltage regulation.
Replacement Considerations
Check for TL4051A12IDBZR as a standard version variant. Verify compatibility with LM4041A12IDBZR for similar fixed voltage applications. Ensure pinout and thermal characteristics match existing board layouts when substituting.
