The ADR425AR from Analog Devices Inc. is a high-precision voltage reference component that offers a stable and accurate reference voltage for various applications. This device is part of the ADR42x series, which is renowned for its low noise, high accuracy, and long-term stability, making it an ideal choice for precision data converters and measurement devices.

Key Features

• Reference Output Voltage: The ADR425AR provides a nominal output voltage of 2.5V, which is widely used as a reference in many circuit designs.
• High Accuracy: With an initial accuracy of ±0.02%, this voltage reference ensures precise voltage regulation for the most demanding applications.
• Low Temperature Coefficient: The device features a low temperature coefficient of 3 ppm/°C (typical), ensuring minimal drift in output voltage over a wide temperature range.
• Low Noise: It exhibits low noise performance with 0.1 Hz to 10 Hz noise of only 1.75 μV p-p (typical), making it suitable for sensitive electronic applications.
• Wide Operating Range: The ADR425AR operates over a wide supply range from 4.5 V to 18 V, providing flexibility in various supply environments.
• Long-Term Stability: The device offers excellent long-term stability of 50 ppm/1000 hours (typical), reducing the need for recalibration over time.
• Package Options: Available in a compact SOIC-8 package, the ADR425AR is designed for easy integration into space-constrained applications.

Applications

The ADR425AR is commonly used in precision data acquisition systems, high-resolution converters, industrial instrumentation, and portable battery-powered devices. Its reliable performance and robustness also make it suitable for automotive electronics, medical equipment, and communication systems requiring precise voltage references.

Conclusion

Analog Devices Inc.'s ADR425AR is a top-tier voltage reference that combines high accuracy, low noise, and excellent temperature stability. Its versatility and performance specifications make it a go-to solution for engineers looking to ensure the integrity of their analog signals in complex electronic systems.