Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| ReferenceType | Series |
| OutputType | Fixed |
| Voltage-Output(Min/Fixed) | 3.3V |
| Current-Output | 25 mA |
| Tolerance | ±0.2% |
| TemperatureCoefficient | 75ppm/°C |
| Noise-01Hzto10Hz | 36µVp-p |
| Noise-10Hzto10kHz | 105µVrms |
| Voltage-Input | 3.35V ~ 5.5V |
| Current-Supply | 50µA |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Overview
Description
REF3033AIDBZT is TI’s fixed 3.3-volt voltage reference (REF3033 family). It provides a stable 3.3-V reference voltage for precision analog circuits, ADCs/DACs, and instrumentation.
Key points:
- Fixed 3.3-V output with low noise and low temperature drift
- Good line and load regulation
- Moderate quiescent current in a compact package
- RoHS-compliant, industrial-temp grade in the AIDBZT package
Typical applications:
- Reference for data converters (ADCs, DACs)
- Analog front ends, instrumentation, sensor conditioning
How to use:
- Place the device close to the loads and decouple Vout with an appropriate capacitor per the datasheet
- Ensure any recommended minimum load and proper layout for best accuracy
- Refer to the datasheet for exact electrical specs, pinout, operating conditions, and packaging details
Note: This is a brief overview. For exact performance, pin configuration, and recommended circuit connections, consult the TI REF3033AIDBZT datasheet.
Key points:
- Fixed 3.3-V output with low noise and low temperature drift
- Good line and load regulation
- Moderate quiescent current in a compact package
- RoHS-compliant, industrial-temp grade in the AIDBZT package
Typical applications:
- Reference for data converters (ADCs, DACs)
- Analog front ends, instrumentation, sensor conditioning
How to use:
- Place the device close to the loads and decouple Vout with an appropriate capacitor per the datasheet
- Ensure any recommended minimum load and proper layout for best accuracy
- Refer to the datasheet for exact electrical specs, pinout, operating conditions, and packaging details
Note: This is a brief overview. For exact performance, pin configuration, and recommended circuit connections, consult the TI REF3033AIDBZT datasheet.
Equivalent
REF3033AIDBZT is a 3.3 V fixed voltage reference from TI. Direct equivalents are other 3.3 V fixed references with similar specs. Potential cross-refs include Analog Devices ADR333/ADR333A and TI’s REF33xx family in compatible packages; in some circuits, LM336‑3.3 (shunt reference) can substitute. For exact cross-reference and pinout, use TI’s Cross Reference tool or distributor searches (e.g., DigiKey/Mouser).
Features
REF3033AIDBZT is a fixed 3.3 V voltage reference. Key features:
- Fixed 3.3 V output
- Low noise and high stability for precision ADC/DAC references
- Low quiescent current
- Low drift (good temperature coefficient)
- Excellent line and load regulation
- Wide operating temperature range
- Simple usage: requires only a bypass capacitor for stability
- Available in the AIDBZT package.
- Fixed 3.3 V output
- Low noise and high stability for precision ADC/DAC references
- Low quiescent current
- Low drift (good temperature coefficient)
- Excellent line and load regulation
- Wide operating temperature range
- Simple usage: requires only a bypass capacitor for stability
- Available in the AIDBZT package.
Pinout
Pin count: 3 (SOT-23-3 package).
Pin functions (from typical pinout for REF3033 in this package):
- Pin 1: Ground (GND)
- Pin 2: Vout (3.3 V reference output)
- Pin 3: Vin (input supply)
Note: verify with the exact datasheet for package pin mapping.
Pin functions (from typical pinout for REF3033 in this package):
- Pin 1: Ground (GND)
- Pin 2: Vout (3.3 V reference output)
- Pin 3: Vin (input supply)
Note: verify with the exact datasheet for package pin mapping.
Manufacturer
- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is a multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits (and related products) for electronics and processing systems.
- What kind of company: TI is a multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits (and related products) for electronics and processing systems.
Application
REF3033AIDBZT is a fixed 3.3 V precision voltage reference. Typical applications:
- ADC/DAC references in data acquisition, instrumentation, and test equipment
- Sensor conditioning, biasing and calibration circuits (bridges, thermocouples, RTDs)
- Microcontroller/FPGA bias and supply references in portable or battery-powered devices
- Analog front-ends and op-amp circuits needing a stable reference
- Medical, automotive and industrial instrumentation requiring a reliable 3.3 V reference
- Power-management rails and precision regulator reference sources
- ADC/DAC references in data acquisition, instrumentation, and test equipment
- Sensor conditioning, biasing and calibration circuits (bridges, thermocouples, RTDs)
- Microcontroller/FPGA bias and supply references in portable or battery-powered devices
- Analog front-ends and op-amp circuits needing a stable reference
- Medical, automotive and industrial instrumentation requiring a reliable 3.3 V reference
- Power-management rails and precision regulator reference sources
Package
8-pin VSSOP (VSSOP-8) package.
