Overview
The REF2933AIDBZR is a precision, low-power voltage reference from Texas Instruments. It is part of the REF29xx family, which is known for its high accuracy and stability. This component is available in a compact 3-pin SOT-23 package, making it ideal for space-constrained and battery-powered applications. The REF2933AIDBZR operates with a low quiescent current of 50 µA and features a low dropout voltage, allowing it to be used in a wide range of supply voltages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 | V |
| Output Voltage Tolerance | ±2% | |
| Supply Voltage Range | 3.35 to 5.5 | V |
| Maximum Load Current | 25 | mA |
| Quiescent Current | 50 | µA |
| Temperature Coefficient | 100 | ppm/°C |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | SOT-23 (DBZ) | |
| ESD Rating (HBM) | ±4000 | V |
| ESD Rating (CDM) | ±1500 | V |
Key Features
- Precision Voltage Reference: The REF2933AIDBZR provides a highly accurate output voltage with a temperature coefficient of 100 ppm/°C.
- Low Power Consumption: It operates with a quiescent current of 50 µA, making it suitable for battery-powered devices.
- Low Dropout Voltage: The device can operate with a supply voltage just 1 mV above the output voltage in an unloaded condition.
- No Load Capacitor Required: The REF2933AIDBZR is stable without a load capacitor, although it can handle any capacitive load.
- Wide Operating Temperature Range: It is specified for temperatures ranging from -40°C to 125°C.
- Low Noise Performance: The device generates noise less than 50 µV PP between frequencies of 0.1 Hz to 10 Hz.
- Long-Term Stability: It exhibits minimal long-term drift, with a typical value of 24 ppm from 0 to 1000 hours.
Applications
- Portable and Battery-Powered Equipment: Ideal for devices where low power consumption and high accuracy are crucial.
- Data Acquisition Systems: Provides stable voltage references necessary for maintaining accuracy in data acquisition systems.
- Medical Equipment: Suitable for medical devices requiring precise voltage references.
- Hand-Held Test Equipment: Used in test equipment where compact size and low power are essential.
Q & A
- What is the output voltage of the REF2933AIDBZR?
The output voltage of the REF2933AIDBZR is 3.3 V with a tolerance of ±2%. - What is the quiescent current of the REF2933AIDBZR?
The quiescent current is 50 µA. - What is the temperature coefficient of the REF2933AIDBZR?
The temperature coefficient is 100 ppm/°C. - Does the REF2933AIDBZR require a load capacitor?
No, the REF2933AIDBZR does not require a load capacitor but can handle any capacitive load. - What is the operating temperature range of the REF2933AIDBZR?
The operating temperature range is -40°C to 125°C. - What is the maximum load current of the REF2933AIDBZR?
The maximum load current is 25 mA. - Is the REF2933AIDBZR RoHS compliant?
- What is the package type of the REF2933AIDBZR?
The package type is SOT-23 (DBZ).- What are the ESD ratings for the REF2933AIDBZR?
The ESD ratings are ±4000 V for the Human-Body Model (HBM) and ±1500 V for the Charged-Device Model (CDM).- How does the REF2933AIDBZR perform in terms of noise?
The device generates noise less than 50 µV PP between frequencies of 0.1 Hz to 10 Hz. - What is the package type of the REF2933AIDBZR?
