• State TI Thinks Resolved
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 34 subscribers
  • Views 30 views
  • Users 0 members are here
Support feedback
Options
Options
Related

TCA9848: TCA9848 channel switching time

af36
Intellectual 260 points

Part Number: TCA9848

Hello,

I am interested in using the TCA9848 to switch between 8 sensors that have identical addresses. I need to read each sensor at least every 100 ms. I see the propagation delay is only 1 ns, but is there any additional switching delay that I need to account for when channel switching?

Thank you.

  • 0
    TI__Mastermind 28945 points

    Hello af36,

    100ms is pretty small in this context, so I wouldn't be worried about timing.
    Other than the propagation delay which is related to the mux the other timing specifications are according to the I2C protocol. 
    You can find them under section 5.6 I 2C Interface Timing Requirements.

    Not all of them impact the switching delay, but overall it shouldn't be a point of concern.

    Thanks,

    Nir