REF200AU/2K5G4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics:
  • High precision
  • Low temperature coefficient
  • Low output noise
  • Wide operating temperature range
• Package: SOT-23-3
• Essence: Provides a stable and accurate voltage reference for various electronic applications
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Output Noise Voltage: 10µVrms
• Operating Temperature Range: -40°C to +125°C
• Supply Voltage Range: 2.7V to 40V
• Quiescent Current: 60µA

Detailed Pin Configuration

The REF200AU/2K5G4 IC has three pins arranged as follows:

1. VOUT: Output pin, provides the stable reference voltage of 2.5V.
2. GND: Ground pin, connected to the ground potential of the circuit.
3. VIN: Input pin, connected to the supply voltage.

Functional Features

• High Precision: The REF200AU/2K5G4 offers excellent initial accuracy and low temperature coefficient, ensuring precise voltage references.
• Low Output Noise: The IC produces minimal output noise, making it suitable for noise-sensitive applications.
• Wide Operating Temperature Range: With a temperature range of -40°C to +125°C, it can be used in various environmental conditions.
• Low Quiescent Current: The device consumes low quiescent current, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - High precision and stability - Low output noise - Wide operating temperature range - Low quiescent current

Disadvantages: - Limited output voltage options - SOT-23-3 package may not be suitable for all applications

Working Principles

The REF200AU/2K5G4 utilizes a bandgap voltage reference circuit to generate a stable and accurate 2.5V 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 over a wide temperature range.

Detailed Application Field Plans

The REF200AU/2K5G4 is commonly used in various electronic systems, including:

1. Precision Analog Circuits: Provides a stable voltage reference for analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and operational amplifiers.
2. Sensor Interfaces: Ensures accurate voltage references for sensor signal conditioning circuits.
3. Power Management Systems: Used as a reference voltage for power management ICs, voltage regulators, and battery charging circuits.
4. Test and Measurement Equipment: Provides a precise reference voltage for calibration and measurement purposes.

Detailed and Complete Alternative Models

1. REF102AU/2K5G4: Similar to REF200AU/2K5G4, but with an initial accuracy of ±0.1%.
2. REF302AU/2K5G4: Offers a higher output voltage of 3.0V, suitable for specific applications requiring a different reference voltage.
3. REF502AU/2K5G4: Provides a lower output voltage of 2.0V, ideal for applications with lower voltage requirements.

These alternative models offer similar functionality with slight variations in output voltage or accuracy, allowing users to choose the most suitable option for their specific application needs.

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