TXS0108E-Q1 Npass Bias function

Hi Dylan ,

Yes ,if the switch is on , then A =B , but when A signal reaches high enough to turn off the FET (VGS <Vt) then the pullups on B side pulls up to desired voltage level . 

Hello Dylan,

Here is an app note that goes over how the TXS family of parts work.  It gives a lot more detail about how the family of parts work.

http://www.ti.com/lit/an/scea044/scea044.pdf

-Francis Houde