This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMUX7612: mux status when unpowered

Part Number: TMUX7612

What is the switch state when the device is unpowered?  Is there isolation between input and output?



  • The switch itself is open, but there are clamping diodes to the power rails, so the absolute maximum ratings forbid voltages above VDD + 0.5 V.

  • Hey Dan,

    You'll likely turn the device on if you apply a signal when the supply is off. We can't guarantee anything since it's technically using the device outside the specs but you'll end up backpowering an internal FET gate that will turn on the source to drain path. So technically if there is no signal on the S/D pins the channel would be off but in the scenario where it matter where a signal is on the source/drain, then the devices signal path would be on

    If you want a 4ch 1:1 device that can support powered-off protection (isolating the input to output when supply =0V) take a look at  the TMUX741xF