Texas Instruments

ISO7821FDWW  

Digital Isolators

ISO7821FDWW Description

The ISO7821FDWW is a high-performance digital isolator manufactured by Texas Instruments. This device is designed to provide reliable isolation in digital communication systems, ensuring signal integrity and safety. It features a capacitive coupling technology that offers excellent common mode transient immunity and pulse width distortion performance. With a data rate of 100Mbps and two unidirectional channels, the ISO7821FDWW is ideal for applications requiring high-speed, bidirectional communication.

ISO7821FDWW Features

• Inputs - Side 1/Side 2: 1/1
• Rise / Fall Time (Typ): 2.4ns, 2.4ns
• Common Mode Transient Immunity (Min): 100kV/µs
• Pulse Width Distortion (Max): 4.6ns
• Isolated Power: No
• Data Rate: 100Mbps
• Number of Channels: 2
• Technology: Capacitive Coupling
• Voltage - Supply: 2.25V ~ 5.5V
• Propagation Delay tpLH / tpHL (Max): 16ns, 16ns
• Voltage - Isolation: 5700Vrms
• Mounting Type: Surface Mount
• Package: Tube

The ISO7821FDWW's unique features include its low propagation delay, which ensures minimal signal latency, and its high isolation voltage, which provides robust protection against electrical noise and transients. Its capacitive coupling technology also offers excellent common mode transient immunity, making it suitable for applications with high noise levels.

ISO7821FDWW Applications

The ISO7821FDWW is ideal for a variety of applications, including:

1. Industrial Control Systems: Its high isolation voltage and low propagation delay make it suitable for use in harsh industrial environments where signal integrity is critical.
2. Automotive Applications: The ISO7821FDWW can be used in automotive systems to provide isolation between high-voltage and low-voltage domains, ensuring safety and reliability.
3. Medical Equipment: Its low power consumption and high isolation voltage make it an excellent choice for use in medical devices, where signal integrity and patient safety are paramount.
4. Smart Grid and Renewable Energy Systems: The ISO7821FDWW can be used in smart grid and renewable energy systems to provide isolation between different voltage domains, ensuring safe and reliable operation.

Conclusion of ISO7821FDWW

The ISO7821FDWW is a versatile and high-performance digital isolator that offers excellent signal integrity, safety, and reliability. Its unique features, such as low propagation delay, high isolation voltage, and capacitive coupling technology, make it an ideal choice for a wide range of applications, including industrial control systems, automotive applications, medical equipment, and smart grid systems. With its robust performance and wide range of applications, the ISO7821FDWW is a valuable addition to any digital communication system.

ISO7821FDWW Documents

Download datasheets and manufacturer documentation for ISO7821FDWW

Datasheets :

ISO7821      

Design Resources :

Digital Isolator Design Guide      

Other Related Documents :

Isolation Glossary