SLAAED5 june   2023 AFE11612-SEP , INA240-SEP , OPA4H199-SEP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 LDMOS and GaN Power Amplifier FET PA Basics
  5. 2 VGS Compensation
  6. 3 Sequencing
  7. 4 An Integrated PA Biasing Solution
  8. 5 Negative GaN Biasing
  9. 6 VDRAIN Switching Circuit
  10. 7 Controlled Gate Sequencing Circuit
  11. 8 VDRAIN Monitoring
  12. 9 IDQ Monitoring
  13. 10External Negative Power Supply Monitoring
  14. 11PA Temperature Monitoring
  15. 12Summary
  16. 13References

Abstract

This application note details the basic functions and benefits of the AFE11612-SEP in voltage biasing for radio frequency power amplifiers in space-rated applications. This report reviews the fundamentals of power amplifier biasing and supporting circuitry.