The REF3033AIDBZR is a precision 3.3V series voltage reference IC manufactured by Texas Instruments (TI). It is designed to provide a stable reference voltage for precision analog circuits, data acquisition systems, measurement equipment, and power management applications.
Part of the REF30xx family, this device offers an initial accuracy of ±0.2%, low power consumption, and a maximum supply current of 50µA. Its output current capability of up to 25mA and compact SOT-23-3 surface-mount package make it suitable for space-constrained electronic designs.
Key Features:
- Manufacturer: Texas Instruments (TI)
- Part Number: REF3033AIDBZR
- Device Type: Precision Voltage Reference
- Fixed Output Voltage: 3.3V
- Initial Accuracy: ±0.2%
- Maximum Supply Current: 50µA
- Maximum Output Current: 25mA
- Input Voltage Range: 3.35V to 5.5V
- Operating Temperature: -40°C to +125°C
- Package: SOT-23-3
- Mounting Type: Surface Mount
Typical applications include precision analog-to-digital conversion, industrial instrumentation, sensor signal conditioning, portable electronics, and power management systems.
Refer to the official TI datasheet for detailed electrical specifications and recommended operating conditions.









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