Overview
The REF3033AIDBZT from Texas Instruments is a precision voltage reference component designed to provide a stable 3.3V output. This device is part of the REF30xx family, known for its high accuracy, low power consumption, and excellent temperature drift performance. The REF3033AIDBZT is packaged in a compact 3-pin SOT-23 (DBZ) package, making it suitable for a wide range of applications where space is limited.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage Reference Type | Series - Fixed |
| Reference Voltage | 3.3V |
| Initial Accuracy | 0.2% |
| Temperature Coefficient | 35 ppm/°C (max from 0°C to 70°C), 75 ppm/°C (max from -40°C to +125°C) |
| No. of Pins | 3 |
| Operating Temperature Range | -40°C to 125°C |
| Quiescent Current (Iq) | 42 µA (typical), 50 µA (max) |
| Output Current | 25 mA |
| Low Dropout | 1 mV |
| Package Style | SOT-23-3 |
| RoHS Compliance | Yes |
Key Features
- MicroSize Package: Compact 3-pin SOT-23 (DBZ) package, ideal for space-constrained designs.
- High Accuracy: Initial accuracy of 0.2% ensures reliable voltage reference.
- Low Dropout: Operates with supplies within 1 mV of output voltage under zero-load conditions.
- Low Power Consumption: Quiescent current of 42 µA (typical), making it suitable for battery-powered applications.
- Excellent Temperature Drift Performance: 50 ppm/°C (max from 0°C to 70°C) and 75 ppm/°C (max from -40°C to +125°C).
- No Load Capacitor Required: Stable operation without the need for an external load capacitor.
Applications
- Loop-Powered Industrial Applications: Suitable for pressure and temperature transmitter applications.
- Intrinsically Safe and Explosion-Proof Applications: Does not require a load capacitor, making it easy to use in such environments.
- Portable and Battery-Powered Devices: Low power consumption and small size make it ideal for these applications.
Q & A
- What is the reference voltage of the REF3033AIDBZT?
The reference voltage is 3.3V.
- What is the initial accuracy of the REF3033AIDBZT?
The initial accuracy is 0.2%.
- What is the temperature coefficient of the REF3033AIDBZT?
The temperature coefficient is 35 ppm/°C (max from 0°C to 70°C) and 75 ppm/°C (max from -40°C to +125°C).
- What is the operating temperature range of the REF3033AIDBZT?
The operating temperature range is -40°C to 125°C.
- What is the quiescent current (Iq) of the REF3033AIDBZT?
The quiescent current is 42 µA (typical) and 50 µA (max).
- Does the REF3033AIDBZT require a load capacitor for stability?
No, it does not require a load capacitor for stable operation.
- What is the package style of the REF3033AIDBZT?
The package style is SOT-23-3.
- Is the REF3033AIDBZT RoHS compliant?
Yes, it is RoHS compliant.
- What are some typical applications of the REF3033AIDBZT?
Typical applications include loop-powered industrial applications, intrinsically safe and explosion-proof environments, and portable or battery-powered devices.
- What is the maximum output current of the REF3033AIDBZT?
The maximum output current is 25 mA.
