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TMUX6104: Clarifications required Single supply operation of TMUX6104

HARI T O1
Expert 1215 points
Part Number: TMUX6104
Other Parts Discussed in Thread: TMUX1204, TMUX1104, TMUX1109, TMUX1309

Dear Team,

I want to use TMUX6104 in one of my applications.

I have a single 5V supply available.

Will this IC work properly with a 5V supply.(VDD=5V and VSS=0V)

In the datasheet, I can see that "Wide Supply Range: ±5 V to ±16.5 V (Dual Supplies) or 10 V to 16.5 V (Single Supply)".

The absolute maximum rating is given below.

From these absolute ratings what I understood is it can work with VDD=5V and VSS=0V(GND).

Please correct me if I am wrong

Regarding 

HARI

  • 0
    Guru 243190 points

    The absolute maximum ratings tell you when the device might be damaged. They do not guarantee correct operation.

    The recommended operating conditions say that you need at least 10 V from VDD to VSS.

    You need to choose a device that is actually rated for a 5 V single supply, e.g., TMUX1204 or TMUX1104.

  • 0 in reply to Clemens Ladisch
    Expert 1215 points

    Hi Clemens,

    Thank you.

    TMUX1204 is non stock

     TMUX1104 only available with mouser.

    Regards

    HARI

  • +1 in reply to HARI T O1
    TI__Mastermind 43295 points

    Hi Hari,

    Just to confirm Clemens is correct - this device should be operated from at least +/-5V - not a single supply of 5V. While the part shouldn't be damaged we don't guarantee it will work at that level.

    That being said - the only other single channel 4:1 multiplexers we have are the TMUX1104 and TMUX1204. Mouser is a distributor for our parts so they should be fine coming from there if you want to go with the TMUX1104. 

    However we do have quite the assortment of 5V 2 channel 4:1 multiplexers which are in stock. The unneeded analog I/O pins can be left floating for low frequency applications and if higher speed is needed terminating these pins with a 50 Ohm resistor is recommended.  Some good parts to start with if this is a possible options for you that have some stock are the TMUX1309 which is available in a WQFN package. We also have a TMUX1109 but we do have less stock of this part.  But please also take a look at our 2 channel 4:1 portfolio as a lot of these parts could potentially work in the application if this is a route that you possibly want to pursue. As a note if it says it supports 5V in the single supply table but it allows for higher supply voltages that typically means you are looking at worse performance as Multiplexers typically work best at max voltage (Best Channel Parameters). 

    Please let me know if you have any further questions!

    Best,

    Parker Dodson

  • 0 in reply to Parker Dodson
    Expert 1215 points

    Hi Parker,

    Thank you.

    Regards

    HARI