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Product Detailed Parameters
- Description：IC VREF SERIES 0.15% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：-
- Current - Output：30 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 REF3312AIDBZTG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 1.25 V with an initial accuracy of 0.15%. It operates within an input voltage range of 1.7 V to 5.5 V and draws a typical quiescent current of 3.9 µA. The device features a temperature coefficient of 30 ppm/°C and supports a maximum load current of 5 mA. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in a compact SOT-23-3 surface-mount package.
Feature Summary
- Provides stable 1.25 V reference output with high initial accuracy
- Ultra-low power consumption suitable for battery-operated systems
- Maintains performance over wide industrial temperature ranges
- Compact footprint for space-constrained PCB layouts
Applications
- Portable instrumentation requiring low power supply
- Battery-powered measurement devices
- Data acquisition systems
- Industrial process control loops
Procurement Notes
Verify the suffix G4 indicates RoHS compliance and lead time requirements before ordering. Confirm the SOT-23-3 package availability matches your assembly capabilities. Check humidity sensitivity levels for storage conditions. Ensure the specific revision aligns with your design specifications.
Selection Notes
Select this component when a fixed 1.25 V reference is required with minimal power draw. The SOT-23-3 package offers a small form factor compared to larger alternatives. Consider the 30 ppm/°C drift if thermal stability is critical. Verify input voltage headroom exceeds 1.7 V for proper regulation.
Part Context
This part belongs to the REF33xx family of precision voltage references designed for low-power applications. It shares architectural similarities with other members like the REF3318 and REF3320 but provides a unique 1.25 V output level. The family targets cost-sensitive designs needing reliable performance without complex external circuitry.
Replacement Considerations
Direct substitutes include REF3312AIDBZR for reel packaging or REF3312AIDBZT for cut tape. Other variants in the REF3312 series may offer different packages but maintain identical electrical characteristics.
