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REF191GSZ
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Reference
Characteristics: - High precision - Low temperature coefficient - Low dropout voltage - Low quiescent current
Package: SOT-23-3
Essence: The REF191GSZ is a voltage reference IC that provides a stable and accurate output voltage.
Packaging/Quantity: The REF191GSZ is available in tape and reel packaging, with 3000 units per reel.
Specifications
- Output Voltage Range: 1.24V to 5V
- Initial Accuracy: ±0.2%
- Temperature Coefficient: 10ppm/°C
- Dropout Voltage: 100mV
- Quiescent Current: 60µA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The REF191GSZ has three pins:
- VOUT: Output voltage pin
- GND: Ground pin
- VIN: Input voltage pin
Functional Features
- High precision voltage reference for various applications
- Stable output voltage over a wide temperature range
- Low dropout voltage allows operation with low input voltages
- Low quiescent current minimizes power consumption
Advantages and Disadvantages
Advantages: - High accuracy and stability - Low temperature coefficient ensures reliable performance - Small package size allows for space-saving designs - Low power consumption extends battery life
Disadvantages: - Limited output voltage range - Not suitable for high current applications
Working Principles
The REF191GSZ uses bandgap voltage reference technology to generate a precise and stable output voltage. It operates by comparing the voltage across a temperature-dependent resistor with a fixed voltage reference. This comparison allows the IC to compensate for temperature variations and provide a consistent output voltage.
Detailed Application Field Plans
The REF191GSZ is commonly used in various applications, including:
- Precision analog-to-digital converters (ADCs)
- Digital-to-analog converters (DACs)
- Voltage regulators
- Battery-powered devices
- Sensor interfaces
Detailed and Complete Alternative Models
- REF192GSZ: Similar to REF191GSZ, but with a higher initial accuracy of ±0.1%
- REF193GSZ: Similar to REF191GSZ, but with a lower quiescent current of 30µA
- REF194GSZ: Similar to REF191GSZ, but with a wider operating temperature range of -55°C to +125°C
These alternative models offer different specifications and features to cater to specific application requirements.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de REF191GSZ em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of REF191GSZ in technical solutions:
Q: What is REF191GSZ? A: REF191GSZ is a precision voltage reference IC (integrated circuit) manufactured by Texas Instruments.
Q: What is the voltage range of REF191GSZ? A: The voltage range of REF191GSZ is typically between 1.24V and 5.5V.
Q: What is the purpose of using REF191GSZ in technical solutions? A: REF191GSZ is commonly used as a stable voltage reference for various applications, such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and power management circuits.
Q: What is the output voltage accuracy of REF191GSZ? A: The output voltage accuracy of REF191GSZ is typically within ±0.2%.
Q: Can REF191GSZ operate in low-power applications? A: Yes, REF191GSZ has a low quiescent current consumption, making it suitable for low-power applications.
Q: Is REF191GSZ temperature-compensated? A: Yes, REF191GSZ is designed with temperature compensation techniques to maintain its accuracy over a wide temperature range.
Q: Can REF191GSZ be used in battery-powered devices? A: Yes, REF191GSZ can be used in battery-powered devices due to its low power consumption and wide operating voltage range.
Q: Does REF191GSZ require external components for operation? A: Yes, REF191GSZ requires an external bypass capacitor for stability and noise reduction.
Q: What is the package type of REF191GSZ? A: REF191GSZ is available in a small SOT-23 package, which is suitable for space-constrained applications.
Q: Are there any application notes or reference designs available for REF191GSZ? A: Yes, Texas Instruments provides application notes and reference designs that can help users understand and implement REF191GSZ in their technical solutions.
Please note that the answers provided here are general and may vary depending on specific requirements and use cases. It is always recommended to refer to the datasheet and documentation provided by the manufacturer for accurate information.