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MUX507: Input common mode voltage range

Hiroaki Yuyama TED
Expert 1350 points
Part Number: MUX507

Dear, Support Team.

I would like to know about the common mode voltage range of the differential input type.
Can common mode voltage be used within the power supply voltage range?
For example, can we take 2V difference input of common mode voltage of 24V?

Best Regards,
Hiroaki Yuyama

  • 0
    TI__Intellectual 2165 points

    Hi Yuyama-san,

    To clarify, I am assuming you are asking what is the recommended operating range for the source input pins.

    Below is the recommended operating conditions from TMUX507 datasheet:

    As highlighted above, no matter what common mode voltage and difference input at the source input pin, we recommend the source pins voltage to be within Vss~Vdd.

    For example, if you have a 2V difference input of common mode voltage of 24V, the max Vs = 25V.

    In this case, Vdd should be at least 25V( Vss=0V, for single supply case. Note that the Vdd range should still be within the recommended operating range listed in datasheet.).

    Please let me know if further questions.

    Thank you,

    Helen

  • 0 in reply to Helen Sun
    Expert 1350 points
    Hi,Helen-san
    Thank you for your kind reply.

    I understood common mode voltage.
    What I meant is source input pin.

    For example, in the instrumentation amp capable of differential input of the INA series, there was a description of common mode voltage range.
    I understood that the MUX 507 is within the electrical specification range if the source voltage is in the range of the supply voltage.

    Best Regards,
    Hiroaki Yuyama