SLAAED5A June   2023  – September 2025 AFE11612-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 Biasing for GaN PAs
  9. 6 Fast Switching for TDD Applications
  10. 7 VDRAIN Switching Circuit
  11. 8 Controlled Gate-Sequencing Circuit
  12. 9 VDRAIN Monitoring
  13. 10External Negative Power Supply Monitoring
  14. 11PA Temperature Monitoring
  15. 12Summary
  16. 13References
  17. 14Revision History

11 PA Temperature Monitoring

The AFE11612-SEP has two sets of remote temperature sensor inputs that can be used to monitor the temperature of two diode-connected transistors placed near the PAs. The two temperature sensors have programmable alarm thresholds that can trigger an alarm state and disable the DAC outputs.

Remote Temperature CircuitFigure 11-1 Remote Temperature Circuit