SLAAED5B June   2023  – May 2026 AFE11612-SEP , INA951-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. 10IDQ Monitoring
  14. 11External Negative Power Supply Monitoring
  15. 12PA Temperature Monitoring
  16. 13Summary
  17. 14References
  18. 15Revision History

12 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 Circuit Figure 12-1 Remote Temperature Circuit