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Product Detailed Parameters
- Description：IC VREF SERIES 0.2% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：10 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 REF3133AIDBZTG4 is a fixed series voltage reference IC manufactured by Texas Instruments, providing a nominal output of 3.3 V. It features an initial accuracy of ±0.2% and a temperature coefficient of 20 ppm/°C. The device operates within an input voltage range of 3.35 V to 5.5 V and draws a supply current of 100 µA. It supports a maximum load current of 10 mA and functions across a temperature range of -40°C to +125°C. Housed in a surface-mount SOT-23-3 package, it offers low noise performance with 43 µVp-p (0.1 Hz to 10 Hz) and 63 µVrms (10 Hz to 10 kHz).
Feature Summary
- Provides stable 3.3 V reference with high precision.
- Low power consumption suitable for battery applications.
- Compact surface-mount packaging for space-constrained designs.
Applications
- Analog-to-digital converter (ADC) reference inputs.
- Digital-to-analog converter (DAC) voltage sources.
- Precision measurement instrumentation circuits.
Procurement Notes
Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the package type matches the required PCB footprint. Ensure the operating environment stays within the specified -40°C to +125°C range. Check for any recent Product Change Notifications regarding marking or assembly changes.
Selection Notes
Select this component when a 3.3 V output with ±0.2% initial accuracy is required. Consider the 20 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 100 µA supply current against system power budgets. Compare the 10 mA load capability with downstream circuit requirements.
Part Context
This part belongs to the REF31xx series of voltage references from Texas Instruments. It shares the same electrical specifications and pinout with the REF3133AIDBZR variant, differing primarily in the manufacturing lot or specific compliance markings associated with the G4 suffix. It is designed for general-purpose precision applications requiring a compact form factor.
Replacement Considerations
The REF3133AIDBZR is a direct functional equivalent with identical electrical characteristics. Verify that the replacement part meets all environmental and regulatory requirements for the specific application.
