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The REF3112AIDBZTG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 1.25 V with an initial accuracy of 0.2%. It features a low temperature coefficient of 20 ppm/°C and operates on a supply voltage range up to 5.5 V. The device draws a typical quiescent current of 100 µA and supports a maximum shunt current of 10 mA. Housed in a compact SOT-23-3 package, it functions reliably across an extended industrial temperature range from -40°C to +125°C.
Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm RoHS compliance status and packaging details. Ensure the ordering information matches the exact component designation to avoid discrepancies in lead times or availability. Cross-reference the datasheet revision history for any recent updates regarding pin configurations or electrical characteristics before finalizing procurement orders.
Select this component when a 1.25 V output is required with tight tolerance specifications. The 20 ppm/°C drift rate makes it suitable for applications demanding higher thermal stability than standard references. Consider the 100 µA current draw relative to system power budgets, as it is higher than ultra-low-power alternatives but offers improved accuracy and load regulation capabilities.
This part belongs to the REF31xx family of precision voltage references. It shares architectural similarities with other members like the REF3118, differing primarily in output voltage and drift characteristics. The SOT-23-3 package allows for space-constrained PCB layouts while maintaining robust thermal performance within the specified operating temperature range.
The REF3112AIDBZT is listed as a recommended replacement. Verify pin compatibility and electrical parameter equivalence before substitution.