Overview
The Texas Instruments REF3433IDBVR is a high-precision, low-drift, and low-power voltage reference component. It is part of the REF34xx series and is designed to provide a stable 3.3V output voltage with an initial accuracy of ±0.05%. This device is packaged in a small SOT-23-6 footprint, making it suitable for a wide range of applications, including those requiring high signal integrity and low noise. The REF3433IDBVR operates over a temperature range of -40°C to 125°C, making it versatile for various environmental conditions.
Key Specifications
| Parameter | Description |
|---|---|
| Output Voltage | 3.3V ±0.05% |
| Supply Voltage Range | 3.8V to 12V |
| Output Current | ±10 mA |
| Quiescent Current | 95 µA (maximum) |
| Temperature Coefficient | 6 ppm/°C (maximum) |
| Operating Temperature Range | -40°C to 125°C |
| Package | SOT-23-6 |
| Noise (0.1 Hz to 10 Hz) | 3.8 µV p-p/V |
| Noise (10 Hz to 10 kHz) | 24 µVrms |
| Long-term Stability | 25 ppm/1000 hrs |
| RoHS Status | ROHS3 Compliant |
Key Features
- High initial accuracy: ±0.05%
- Low temperature drift: 6 ppm/°C
- Low quiescent current: 95 µA (maximum)
- Ultra-low zero load dropout voltage: 100 mV (maximum)
- Low output noise: 3.8 µV p-p/V (0.1 Hz to 10 Hz)
- Excellent long-term stability: 25 ppm/1000 hrs
- Small footprint: SOT-23-6 package
- Wide input voltage range: up to 12V
- Compatibility with various ADC and DAC devices
Applications
The REF3433IDBVR is suitable for a variety of applications where high precision and low noise are critical. These include:
- High-resolution data converters and analog-to-digital converters (ADCs) such as ADS1287 and ADS1112.
- Digital-to-analog converters (DACs) like DAC8802.
- Portable and battery-powered devices due to its low operating current.
- Industrial and automotive systems requiring stable voltage references over a wide temperature range.
- Noise-critical systems where high signal integrity is essential.
Q & A
- What is the output voltage of the REF3433IDBVR?
The output voltage is 3.3V with an initial accuracy of ±0.05%. - What is the operating temperature range of the REF3433IDBVR?
The operating temperature range is -40°C to 125°C. - What is the maximum supply voltage for the REF3433IDBVR?
The maximum supply voltage is 12V. - What is the quiescent current of the REF3433IDBVR?
The quiescent current is 95 µA (maximum). - Is the REF3433IDBVR RoHS compliant?
Yes, it is ROHS3 compliant. - What is the noise level of the REF3433IDBVR in the 0.1 Hz to 10 Hz frequency range?
The noise level is 3.8 µV p-p/V. - What is the long-term stability of the REF3433IDBVR?
The long-term stability is 25 ppm/1000 hrs. - What package type is the REF3433IDBVR available in?
The REF3433IDBVR is available in a SOT-23-6 package. - What are some typical applications for the REF3433IDBVR?
Typical applications include high-resolution data converters, portable and battery-powered devices, and noise-critical systems. - Is the REF3433IDBVR compatible with other ADC and DAC devices?
Yes, it is compatible with devices such as ADS1287, DAC8802, and ADS1112.
