8.3.3 Series Resistance Cancellation

Series resistance in an application circuit that typically results from printed circuit-board (PCB) trace resistance and remote line length is automatically cancelled by the TMP43x, preventing what would otherwise result in a temperature offset. A total of up to 1-kΩ of series line resistance is cancelled by the TMP43x if beta correction is disabled and up to 300 Ω of series line resistance is cancelled if beta correction is enabled, eliminating the need for additional characterization and temperature offset correction. See Figure 7 and Figure 8 for details on the effects of series resistance on sensed remote temperature error.