REF02AU

Product Overview

Category: Analog Voltage Reference

Use: The REF02AU is a precision voltage reference that provides a stable and accurate output voltage for various applications in electronic circuits.

Characteristics: - High accuracy - Low temperature coefficient - Low output impedance - Wide operating temperature range - Low power consumption

Package: The REF02AU is available in a small 8-pin plastic dual in-line package (DIP) or a surface mount package (SMD).

Essence: The essence of the REF02AU is to provide a reliable and precise voltage reference for analog circuits, ensuring consistent performance and accurate measurements.

Packaging/Quantity: The REF02AU is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the manufacturer.

Specifications

The REF02AU has the following specifications:

• Output Voltage Range: 2.5V ± 0.5%
• Temperature Coefficient: 10ppm/°C
• Output Impedance: 0.1Ω
• Supply Voltage Range: 4.5V to 40V
• Operating Temperature Range: -40°C to +85°C
• Power Consumption: 1.5mA

Detailed Pin Configuration

The REF02AU has eight pins with the following configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. NC: No Connection
4. TRIM: Trim Input
5. V+: Positive Supply Voltage
6. V-: Negative Supply Voltage
7. NC: No Connection
8. VREF: Reference Voltage Output

Functional Features

• High precision and stability: The REF02AU provides a highly accurate and stable output voltage, making it suitable for precision measurement applications.
• Low temperature coefficient: The low temperature coefficient ensures minimal variation in output voltage with temperature changes.
• Low output impedance: The low output impedance allows the reference voltage to be used in various load conditions without significant voltage drop.
• Wide operating temperature range: The REF02AU can operate reliably over a wide temperature range, making it suitable for both industrial and consumer applications.
• Low power consumption: The low power consumption of the REF02AU minimizes energy usage and extends battery life in portable devices.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low temperature coefficient - Wide operating temperature range - Low power consumption

Disadvantages: - Limited output voltage range (2.5V ± 0.5%)

Working Principles

The REF02AU utilizes a precision bandgap circuit to generate a stable reference 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 REF02AU finds applications in various fields, including: 1. Precision measurement instruments 2. Data acquisition systems 3. Industrial control systems 4. Medical equipment 5. Automotive electronics 6. Communication devices

Detailed and Complete Alternative Models

Some alternative models to the REF02AU include: - REF01AU: Similar specifications but with a different output voltage range (1.25V ± 0.5%) - REF03AU: Higher output voltage range (5V ± 0.5%) with similar characteristics - LT1021: Precision voltage reference with even higher accuracy and lower temperature coefficient

These alternative models offer different output voltage ranges and may have additional features or improved performance compared to the REF02AU.

In conclusion, the REF02AU is a highly accurate and stable analog voltage reference suitable for a wide range of electronic applications. Its precise output voltage, low temperature coefficient, and wide operating temperature range make it a reliable choice for precision measurement and control systems.