SDAA107 October   2025 TMUX4821

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Application
  6. 3Summary
  7. 4References

3 Summary

The TMUX4821 has low Ron, ∆Ron, and Rdrift which allows this to be implemented in the AOM and AIM systems of the PLC, while maintaining precision voltage signaling and reducing the size of the PLC. The low Ron helps to minimally affect the total resistance of the burden resistor line. Additionally, it can switch between the current and voltage modes of the PLC, removing the requirement for two PADCs to be implemented in the system for each mode. This greatly reduces the footprint of the PLC, while maintaining accurate readings from the sensors monitored by the PLC.
Mux Design in PLCs Figure 3-1 Mux Design in PLCs