SDAA107 October   2025 TMUX4821

 

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

Abstract

This application note goes over the beyond the supply multiplexer TMUX4821 implementation in PLC applications and how the application offers a design that maintains precision signals and reduces BOM count. The TMUX4821 accomplishes so by having a very low on resistance (Ron), on resistance mismatch between channels (∆Ron), and on resistance drift across temperature (Rdrift). Allowing this to switch between voltage and current mode readings removing the need for two ADCs.