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TS5A22364: How to select a device that supports bipolar signals

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Replies: 5

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Part Number: TS5A22364

Looking for digitally controlled SPST or SPDT NO style(only) but with bipolar signal. Signal level is <250mV. Logic is TTL. Dual supply available.

Got dizzy looking through the whole list to figure out which ones  can pass bipolar signals.

My need is 4. Could be quad.

ANY?

thnx

robin

  • Robin,

    What is wrong with the TS5A22364 device you selected?  Did you need dual supply?  

    You can filter the table by all devices that support dual supplies.  There are 55 devices.  If you filter down to 4 channel devices there are 9.

    What do you think about using the TMUX6112

    Thank you,

    Adam

  • In reply to Adam Torma:

    Adam
    In fact  TS5A22364 is very good part - excepting that it would be nice if it had only NO type contacts.
    In  our product, ideal switch will be 4 NO types in one tiny package.
    But maybe there are some & I could not locate them?
    If not, we will use it anyways....
    thnx much
    robin
  • In reply to robin gangopadhya18:

    Robin,

    Can you help explain the term normally open type for a 2:1 switch? If the control pin is high there will be a low impedance path to one channel and if it is low there will be a low impedance path to the other channel.

    Are you looking for a device that has an output enable pin that can make both paths high impedance?

    Thank you,
    Adam
  • In reply to Adam Torma:

    Adam:

    "NO"  in this context means that when control inputs are in logic low state, all switch contacts are "OPEN" or high impedance.

    When a control input goes to logic High state, the switch associated with this control input "closes" or goes into low impedance state.

    We  are not looking for enable function.

    Hope this answers your questions.

    -robin

  • In reply to robin gangopadhya18:

    Robin,

    Thank you for the explanation.  You can use the TS5A22362 in the "NO" function you describe above if you connect your load to the NO path.

    Thank you,

    Adam

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