REF43FZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High precision - Low temperature coefficient - Low dropout voltage - Low output noise

Package: TO-92, SOT-23, SOIC-8

Essence: The REF43FZ is a voltage reference IC that provides a stable and accurate voltage output.

Packaging/Quantity: Available in reels or tubes with varying quantities depending on the package type.

Specifications

• Output Voltage Range: 2.5V to 5.0V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 200mV
• Output Noise: 4µVrms

Detailed Pin Configuration

The REF43FZ has three pins:

1. VOUT: Output voltage pin.
2. VIN: Input voltage pin.
3. GND: Ground pin.

Functional Features

• High precision voltage reference.
• Stable output voltage over a wide range of temperatures.
• Low temperature coefficient ensures minimal voltage drift.
• Low dropout voltage allows for efficient operation even with low input voltages.
• Low output noise ensures clean and reliable voltage reference.

Advantages and Disadvantages

Advantages: - High precision and accuracy. - Low temperature coefficient minimizes voltage drift. - Wide operating temperature range. - Low dropout voltage enables efficient operation. - Low output noise ensures reliable performance.

Disadvantages: - Limited output voltage range. - Requires external components for proper operation. - Sensitive to variations in input voltage.

Working Principles

The REF43FZ uses a bandgap voltage reference circuit to generate a stable and accurate output voltage. It utilizes a combination of resistors, diodes, and transistors to create a reference voltage that is relatively immune to temperature variations. This ensures that the output voltage remains constant even in changing environmental conditions.

Detailed Application Field Plans

The REF43FZ is commonly used in various applications where a stable and accurate voltage reference is required. Some of its typical application fields include:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Power management circuits
5. Sensor calibration circuits

Detailed and Complete Alternative Models

1. REF102 - Similar specifications, available in different package options.
2. REF5020 - Higher precision and lower temperature coefficient, suitable for more demanding applications.
3. LT6654 - Ultra-precision voltage reference with extremely low noise and drift.

These alternative models offer similar functionality and can be considered as substitutes depending on specific requirements.

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