The ADR421ARZ is a high-precision voltage reference component manufactured by Analog Devices Inc., a leader in the semiconductor industry. This product is known for its stability and accuracy, making it an ideal choice for precision data converters and various other applications requiring a stable reference voltage.

Key Features

• Output Voltage: The ADR421ARZ provides a precise 2.5V output, which is maintained with a tight accuracy over temperature and time.
• Temperature Coefficient: It boasts an impressive low temperature coefficient, typically 3 ppm/°C, ensuring minimal deviation in output voltage with temperature changes.
• Low Noise: This component exhibits exceptionally low noise performance, with a 0.1 Hz to 10 Hz noise of only 1.5 µVp-p, making it suitable for high-precision applications.
• Long-Term Stability: With a long-term stability of typically 50 ppm/√kHr, the ADR421ARZ ensures a reliable performance over its operational life.
• Supply Range: It operates over a wide supply range from 4.5V to 18V, providing flexibility in various power supply conditions.
• Load Regulation: The device features excellent load regulation characteristics, which is essential for applications where the load conditions vary.
• Sink and Source Capability: The ADR421ARZ can sink and source up to 10 mA of output current, accommodating a variety of load conditions.
• Package: Available in an 8-lead SOIC form factor, the ADR421ARZ is designed for easy integration into a wide range of electronic circuits.

Applications

The ADR421ARZ is versatile and can be employed in numerous applications, including:

• Precision data acquisition systems
• High-resolution analog-to-digital converters (ADCs)
• Digital-to-analog converters (DACs)
• Portable instrumentation
• Industrial process control systems
• Automotive battery monitoring

Conclusion

In summary, the ADR421ARZ from Analog Devices Inc. is a reliable and high-performance voltage reference that offers designers the precision and stability needed for critical electronic applications. Its robust feature set and versatility make it a top choice for engineers looking for a reference voltage solution that stands the test of time and varying environmental conditions.