SBAA515A June   2021  – September 2022 AMC3301 , AMC3301-Q1 , AMC3302 , AMC3302-Q1 , AMC3306M05 , AMC3306M25 , AMC3330 , AMC3330-Q1 , AMC3336 , AMC3336-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Effects of Input Connections on AMC3301 Family Radiated Emissions
  5. 3Attenuating AMC3301 Family Radiated Emissions
    1. 3.1 Ferrite Beads and Common Mode Chokes
    2. 3.2 PCB Schematics and Layout Best Practices for AMC3301 Family
  6. 4Using Multiple AMC3301 Devices
    1. 4.1 Device Orientation
    2. 4.2 PCB Layout Best Practices for Multiple AMC3301
  7. 5Conclusion
  8. 6AMC3301 Family Table
  9. 7Revision History

5 Conclusion

Over the past several years, SiO2 isolation has been a popular choice for many customers in need of isolated amplifiers. Texas Instruments continues to innovate and recently released the AMC3301 precision isolated amplifier with integrated DC/DC converter. The AMC3301 family does not produce excessive radiated emissions by itself and is capable of passing CISPR 11 class B without additional components if the length of input traces or cables are short. Ferrite beads or a common-mode choke can be used to further attenuate radiated emissions if desired. AMC3301 devices can be stacked on top of each other on the top and bottom layers if multiple are used. When designing with the AMC3301 family, customers can confidently create designs featuring the high reliability and high analog performance that capacitive isolation brings, while enjoying the convenience of an integrated DC/DC converter and best in class radiated emissions performance.