Manufacturer Part Number
REF3133AIDBZT
Manufacturer
Texas Instruments
Introduction
REF3133AIDBZT is a high-precision voltage reference from Texas Instruments, designed for power management applications requiring a stable and accurate voltage reference source.
Product Features and Performance
Stable fixed voltage output of 3.3V
Capable of sourcing up to 10 mA output current
High accuracy with a tolerance of ±0.2%
Low temperature coefficient of 20ppm/°C ensures stability across wide temperature ranges
Low noise performance: 43µVp-p (0.1Hz to 10Hz) and 63µVrms (10Hz to 10kHz)
Operates across a wide input voltage range from 3.35V to 5.5V
Low supply current requirement of 135µA for power efficiency
Operating temperature range from -40°C to 125°C supports use in varied environmental conditions
Product Advantages
High precision and stability for critical applications
Low power consumption enhances system efficiency
Wide operating temperature range increases versatility across different environments
Surface mount package (SOT-23-3) allows for compact and flexible PCB design
Key Technical Parameters
Output Voltage (Fixed): 3.3V
Output Current: 10 mA
Tolerance: ±0.2%
Temperature Coefficient: 20ppm/°C
Noise (0.1Hz to 10Hz): 43µVp-p
Noise (10Hz to 10kHz): 63µVrms
Input Voltage Range: 3.35V ~ 5.5V
Supply Current: 135µA
Operating Temperature: -40°C ~ 125°C
Quality and Safety Features
Rigorous Texas Instruments quality standards ensure high reliability and safety for critical applications.
Compatibility
Compatible with a wide range of microcontrollers, digital signal processors, and power management circuits due to its stable 3.3V output and low noise characteristics.
Application Areas
Precision data converters
Portable and battery-powered equipment
Wireless communication systems
Industrial instrumentation
Microprocessor/microcontroller power supplies
Product Lifecycle
Currently active product with ongoing manufacturer support
No near-term discontinuation, ensuring long-term availability for new designs and existing systems
Several Key Reasons to Choose This Product
Texas Instruments' reputation for high-quality, reliable components
Exceptional precision and low temperature drift suitable for high-performance applications
Low noise output benefits sensitive analog circuits
Efficient power consumption contributes to longer battery life in portable applications
Wide application scope due to stable and accurate 3.3V reference voltage
Comprehensive operating temperature range supports use in harsh environments
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