REF3140TDD2

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

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

Package: TO-252-3 (DPAK)

Essence: The REF3140TDD2 is a voltage reference IC that provides a stable and accurate voltage output.

Packaging/Quantity: The REF3140TDD2 is available in tape and reel packaging, with 250 units per reel.

Specifications

• Output Voltage: 3.3V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 300mV
• Output Noise: 5µVrms

Detailed Pin Configuration

The REF3140TDD2 has three pins:

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

Functional Features

• High precision voltage reference for various applications.
• Stable output voltage over a wide range of operating conditions.
• Low temperature coefficient ensures minimal voltage drift with temperature changes.
• Low dropout voltage allows operation 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. - Low dropout voltage enables operation with low input voltages. - Low output noise ensures reliable voltage reference.

Disadvantages: - Limited output voltage options (only 3.3V). - Higher cost compared to standard voltage references.

Working Principles

The REF3140TDD2 utilizes a bandgap voltage reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by employing a temperature-dependent current source and a voltage divider network. This ensures that the output voltage remains constant even with changes in temperature.

Detailed Application Field Plans

The REF3140TDD2 is commonly used in various applications, including:

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

Detailed and Complete Alternative Models

1. REF3130TDD2: 3.0V voltage reference with similar specifications.
2. REF3150TDD2: 3.5V voltage reference with similar specifications.
3. REF3120TDD2: 2.5V voltage reference with similar specifications.

These alternative models provide different output voltage options while maintaining comparable performance characteristics to the REF3140TDD2.

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