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[FAQ] [H] Digital Isolators - Top Questions, Answered

Quickly find solutions to common questions about digital isolator devices by clicking this link. This FAQ answers the most common questions asked about these devices …… ……… …

FAQ: Isolation >> Digital Isolators

Digital Isolators Isolated Interfaces Transformer Drivers

(NEW) Functional Isolation:

  1. [FAQ] What is a functional Isolator?

  2. [FAQ] How can Functional Isolators correct ground shifts and improve noise tolerance on a signal line? - Isolation forum - Isolation - TI E2E support forums

General FAQs:

  1. [FAQ] What is the difference between ISOxxxxF and ISOxxxx devices (Ex. ISO7741 vs. ISO7741F)?

  2. [FAQ] How to calculate the maximum SPI speed supported by a digital isolator?

  3. [FAQ] Can a digital signal be applied to digital isolator input when its respective VCC is 0V?

  4. [FAQ] Can channel input/output pins on a digital isolator be left floating?

  5. [FAQ] Can I power two sides of a digital isolator with different voltages?

  6. [FAQ] How do I read TI's Digital Isolator part numbers?

  7. [FAQ] How do you generate isolated power for a digital isolator?

  8. [FAQ] Can a digital isolator signal voltage be different from its power supply?

  9. [FAQ] What is the best cross reference replacement for the ADuM1441 and ADuM1446 devices?

  10. [FAQ] How do you set current limits and voltage thresholds in your system using digital input modules?

  11. [FAQ] What is the difference between basic and reinforced digital isolators?

  12. [FAQ] ISO7041: What is the FIT data for this part?

  13. [FAQ] What is the logic state of a digital isolator with no input signal?

  14. [FAQ] What is TI's lowest power digital isolator?

  15. [FAQ] In high channel count designs, how do I reduce the number of digital connections to the MCU?

Digital Isolators for Communication:

  1. [FAQ] How to connect SPI MCU to multiple isolated SPI nodes?

  2. [FAQ] Can I connect two unidirectional channels on digital isolators to achieve a bidirectional channel for I2C communication?