Overview
The REF3312AIDBZRG4 from Texas Instruments is a precision voltage reference component that belongs to the REF33xx family. This device is designed to provide a highly accurate and stable voltage reference, making it ideal for a variety of applications requiring low power consumption and high precision. The REF3312AIDBZRG4 is available in a 3-pin SOT-23 package, which is compact and suitable for space-constrained designs. It operates with a low supply current of 3.9 μA (typical) and features an extremely low dropout voltage of 110 mV (typical), ensuring efficient operation in battery-powered and portable devices.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 1.25 V - 0.15% | 1.25 V | 1.25 V + 0.15% | V |
| Supply Input Voltage (VIN) | 1.7 V | - | 5.5 V | V |
| Supply Current (IIN) | - | 3.9 μA | 5 μA | A |
| Output Current (IOUT) | -5 mA | - | +5 mA | mA |
| Dropout Voltage | - | 110 mV | - | mV |
| Temperature Drift | - | - | 30 ppm/°C | ppm/°C |
| Operating Temperature Range | -40°C | - | +125°C | °C |
| Noise (0.1 Hz to 10 Hz) | - | 35 μVPP | - | μVPP |
Key Features
- Microsize Packages: Available in SC70-3, SOT-23-3, and UQFN-8 packages, making it suitable for space-constrained designs.
- Low Supply Current: Typical supply current of 3.9 μA, ideal for battery-powered and portable applications.
- Extremely Low Dropout Voltage: Typical dropout voltage of 110 mV, ensuring efficient operation.
- High Output Current: Capable of delivering ±5 mA of output current.
- Low Temperature Drift: Maximum temperature drift of 30 ppm/°C, ensuring stable output voltage over a wide temperature range.
- High Initial Accuracy: Maximum initial accuracy of ±0.15%.
- Low Noise: Output voltage noise of 35 μVPP in the 0.1 Hz to 10 Hz frequency range.
- Advanced Start-Up Circuit: Fast start-up time, almost independent of load, with output voltage settling within 2 ms.
Applications
- Portable Equipment: Suitable for handheld devices and other portable electronics.
- Tablets and Smartphones: Ideal for mobile devices requiring precise voltage references.
- Hard Disk Drives: Used in data storage devices for stable voltage references.
- Sensor Modules: Applied in various sensor modules requiring accurate voltage references.
- Data Acquisition Systems: Used in systems that require precise and stable voltage references.
- Medical Equipment: Suitable for medical devices that demand high accuracy and stability.
- Test Equipment: Used in test and measurement equipment for reliable voltage references.
Q & A
- What is the typical supply current of the REF3312AIDBZRG4? The typical supply current is 3.9 μA.
- What is the maximum dropout voltage of the REF3312AIDBZRG4? The typical dropout voltage is 110 mV.
- What is the maximum output current of the REF3312AIDBZRG4? The device can deliver up to ±5 mA of output current.
- What is the temperature drift of the REF3312AIDBZRG4? The maximum temperature drift is 30 ppm/°C.
- What is the initial accuracy of the REF3312AIDBZRG4? The maximum initial accuracy is ±0.15%.
- What is the recommended capacitive load range for the REF3312AIDBZRG4? The total capacitive load at the output should be between 0.1 μF to 10 μF.
- What are the available package options for the REF3312AIDBZRG4? It is available in SOT-23-3, SC70-3, and UQFN-8 packages.
- What is the operating temperature range of the REF3312AIDBZRG4? The device operates over a temperature range of -40°C to +125°C.
- What is the noise level of the REF3312AIDBZRG4 in the 0.1 Hz to 10 Hz frequency range? The output voltage noise is 35 μVPP.
- What is the minimum supply voltage required for the REF3312AIDBZRG4? The minimum supply voltage is 1.7 V.
