Overview
The REF3312AIDBZR is a precision voltage reference IC produced by Texas Instruments. It is part of the REF33xx family, known for its low power consumption, high accuracy, and compact packaging. This device is available in microsize packages such as SC70-3, SOT-23-3, and UQFN-8, making it ideal for a wide variety of portable and battery-powered applications. The REF3312AIDBZR operates over a wide temperature range of –40°C to +125°C, ensuring reliability in diverse environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23-3, SC70-3, UQFN-8 |
| Output Voltage | 1.25 V (fixed) |
| Output Voltage Tolerance | ±0.15% (max) |
| Temperature Coefficient | 30 ppm/°C (max) |
| Supply Current | 3.9 µA (typ) |
| Dropout Voltage | 110 mV (typ) |
| Output Current | ±5 mA |
| Noise (0.1 Hz to 10 Hz) | 35 µVp-p |
| Input Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature Range | –40°C to +125°C |
| Mounting Type | Surface Mount |
Key Features
- Microsize Packages: Available in SC70-3, SOT-23-3, and UQFN-8 packages, making it suitable for space-constrained applications.
- Low Supply Current: Typical supply current of 3.9 µA, which is beneficial for battery-powered devices.
- Extremely Low Dropout Voltage: Typical dropout voltage of 110 mV, ensuring efficient operation.
- High Output Current: Capable of delivering up to ±5 mA of output current.
- Low Temperature Drift: Maximum temperature drift of 30 ppm/°C, ensuring stable output voltage across a wide temperature range.
- High Initial Accuracy: Maximum initial accuracy of ±0.15%.
- Low Noise: 0.1 Hz to 10 Hz noise of 35 µVp-p.
- Voltage Options: Available in various output voltages including 1.2 V, 1.8 V, 2.5 V, 3 V, and 3.3 V.
Applications
The REF3312AIDBZR is designed for use in a variety of applications where precision voltage reference is crucial. These include:
- Portable and battery-powered devices due to its low power consumption.
- Industrial control systems requiring stable voltage references.
- Medical devices where precision and reliability are paramount.
- Aerospace and automotive systems that need to operate over a wide temperature range.
- Consumer electronics such as smartphones, tablets, and other handheld devices.
Q & A
- What is the typical supply current of the REF3312AIDBZR?
The typical supply current is 3.9 µA.
- What are the available package options for the REF3312AIDBZR?
The device is available in SC70-3, SOT-23-3, and UQFN-8 packages.
- What is the maximum temperature drift of the REF3312AIDBZR?
The maximum temperature drift is 30 ppm/°C.
- What is the output voltage tolerance of the REF3312AIDBZR?
The output voltage tolerance is ±0.15% (max).
- What is the typical dropout voltage of the REF3312AIDBZR?
The typical dropout voltage is 110 mV.
- What is the maximum output current of the REF3312AIDBZR?
The device can deliver up to ±5 mA of output current.
- What is the operating temperature range of the REF3312AIDBZR?
The operating temperature range is –40°C to +125°C.
- Is the REF3312AIDBZR RoHS compliant?
Yes, the REF3312AIDBZR is RoHS compliant.
- What are some common applications for the REF3312AIDBZR?
Common applications include portable and battery-powered devices, industrial control systems, medical devices, aerospace, and automotive systems.
- What is the noise level of the REF3312AIDBZR in the 0.1 Hz to 10 Hz range?
The noise level in the 0.1 Hz to 10 Hz range is 35 µVp-p.
