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Does TI have a 12:1 analog MUX that can operate from 1.8 V supply?

Yoshiki Harada
Prodigy 90 points
Other Parts Discussed in Thread: CD4067B, TS3A44159, TS3A27518E, SN74LV4051A, SN74CBTLV3251, CD74HC4067

Could you recommend analog MUX with 1.8V operation?

12 inputs go into 1 output. one chip solution is ideal. Discrete solution is acceptable.

  • 0
    TI__Mastermind 45495 points

    Yoshiki-san,

    I found a couple 1:16 muxes on the TI.com switch selection tool like the CD4067B that will pass 1.8 V signals through the signal path. 

    What type of signal are you trying to pass through the 1:12 mux? 

    Do you have any other performance requirements of the switch other than passing 1.8V signal?  Bandwidth, datarate, on-state resistance, etc? 

    Thank you,

    Adam

  • 0 in reply to Adam Torma
    TI__Mastermind 28015 points
    Hello,

    I need to power the IC with 1.8V. Do you have any other solutions??
    The current solution we are looking at is now is 4pcs of ADG804 (4:1 MUX) but would like a single IC solution.
  • 0 in reply to aozer
    TI__Mastermind 45495 points

    Aozer,

    Currently we do not have a 1:12 mux that will operate with a 1.8 V supply.  Are you able to use a different voltage rail or a boost converter?

    When I filtered the TI.com switch selection tool it returned 60 other muxes that operate with 1.8V supply.   Like your current solution you could get creative using multiple ICs.

    What do you think about using 3x TS3A44159 devices or 2x TS3A127518E devices to create a 1:12 mux?

    Thank you,

    Adam

      

  • 0 in reply to Adam Torma
    TI__Prodigy 130 points
    TS3A27518E is the right part number. However it has limitations - three outputs switch simultaneously - so effectively you will not get a 1:12 mux - when you plan to short all the common to make it act like a mux.
  • 0 in reply to Ravindra Munvar1
    TI__Mastermind 45495 points

    Ravindra,

    I wasn't thinking about using the TS3A27518E with shorting the common together.   I was thinking of using the 12 x 1:2 muxes in series to create a 1:12 mux.

  • 0
    TI__Guru 59770 points
    Yoshiki san ,

    Is there other supply which could be used on the board too ? There are 1:8 or 1:16 Muxes which operate from 2V , although the I/O ports will transfer 1.8V signals through them . I was considering a single CD74HC4067 1:16 Mux OR 2 *SN74LV4051A (or SN74CBTLV3251)+ single 1:2 switch.