JAJSNE3B march 2022 – july 2023 TMUX7348F , TMUX7349F
PRODMIX
The previous image shows the case where an incorrect wiring condition occurred and one of the input connectors shorted to the power board supply voltage. If the board supply voltage is higher than the fault voltage supply of the multiplexer, then the TMUX7348F or TMUX7349F will disconnect the source input from passing the signal to protect the downstream ADC. The drain pin of the mux will be pulled up to the fault voltage supply voltage VFP through a 40 kΩ resistor to allow the ADC to determine a fault condition has occurred.