Overview
The REF3312AIDBZT from Texas Instruments is a precision voltage reference component designed for low-power and high-accuracy applications. It is part of the REF33xx family, which includes low-power, precision band-gap voltage references. This specific model is available in a 3-pin SOT-23 (DBZ) package and is characterized by its microsize, low supply current, and extremely low dropout voltage. The REF3312AIDBZT is ideal for a wide variety of portable and battery-powered applications due to its small size and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 1.25 V | V |
| Initial Accuracy | ±0.15% | % |
| Temperature Drift | 30 ppm/°C (max) | ppm/°C |
| Supply Current | 3.9 µA (typ) | µA |
| Dropout Voltage | 110 mV (typ) | mV |
| Output Current | ±5 mA | mA |
| Noise (0.1 Hz to 10 Hz) | 35 µVPP | µVPP |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOT-23 (DBZ) | |
| Minimum Supply Voltage | 1.7 V | V |
Key Features
- Microsize Packages: Available in SC70-3, SOT-23-3, and UQFN-8 packages.
- Low Supply Current: Typical supply current of 3.9 µA.
- Extremely Low Dropout Voltage: Typical dropout voltage of 110 mV.
- High Output Current: Capable of delivering ±5 mA.
- Low Temperature Drift: Maximum temperature drift of 30 ppm/°C.
- High Initial Accuracy: Maximum initial accuracy of ±0.15%.
- Low Noise: Output voltage noise of 35 µVPP from 0.1 Hz to 10 Hz.
- Voltage Options: Available in various output voltages including 1.2 V, 1.8 V, 2.5 V, 3 V, and 3.3 V.
Applications
- Portable Equipment: Ideal for battery-powered devices due to low power consumption.
- Tablets and Smartphones: Suitable for mobile devices requiring precise voltage references.
- Hard Disk Drives: Used in storage devices for stable voltage reference.
- Sensor Modules: Applied in various sensor applications requiring high accuracy.
- Data Acquisition Systems: Used in systems that require precise voltage references for data conversion.
- Medical Equipment: Utilized in medical devices where precision and reliability are critical.
- Test Equipment: Employed in test and measurement equipment for stable voltage references.
Q & A
- What is the output voltage of the REF3312AIDBZT?
The output voltage of the REF3312AIDBZT is 1.25 V.
- What is the typical supply current of the REF3312AIDBZT?
The typical supply current is 3.9 µA.
- What is the maximum temperature drift of the REF3312AIDBZT?
The maximum temperature drift is 30 ppm/°C.
- What is the minimum supply voltage required for the REF3312AIDBZT?
The minimum supply voltage is 1.7 V.
- What are the available package types for the REF3312AIDBZT?
The REF3312AIDBZT is available in SC70-3, SOT-23-3, and UQFN-8 packages.
- What is the output current capability of the REF3312AIDBZT?
The REF3312AIDBZT can deliver ±5 mA of output current.
- What is the noise level of the REF3312AIDBZT from 0.1 Hz to 10 Hz?
The output voltage noise from 0.1 Hz to 10 Hz is 35 µVPP.
- What is the operating temperature range of the REF3312AIDBZT?
The operating temperature range is –40°C to +125°C.
- What are some typical applications of the REF3312AIDBZT?
Typical applications include portable equipment, tablets and smartphones, hard disk drives, sensor modules, data acquisition systems, medical equipment, and test equipment.
- How does the REF3312AIDBZT handle startup time?
The REF3312AIDBZT features an advanced start-up circuit that ensures the output voltage settles within 2 ms, almost independent of the load.
