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TMUX1111: Replacement for Vishay

Part Number: TMUX1111
Other Parts Discussed in Thread: TMUX1113

Hello, 

My customer is asking for replacement for below Vishay devices.

Can you please confirm if TMUX11x products could be a good fit?

 For DG611, do you have any replacement that can meet the Vishay spec for parameters below?

Form factor can be different

 On-Resistance

  1. Off – Resistance
  2. Signal Range (single or dual voltage supply plus its min & max)
  3. Charge injection – this parameter will cause small spike or glitch in our circuitry if the value chosen is high. The charge injection is specified in coulomb.

 For DG613, any replacement for parameters below?

Form & fir can be different

 Supply voltage range (V+toV-): + or - 21V (Absolute max)

  1. Off state Input Capacitance (Cs(off)): less than 3pF (typ)
  2. Off state output Capacitance (Cd(off)): less than 2pF (typ)
  • Hi, Shashank,

    It depends what supplies are used for the DG611 or DG613. It's difficult to comment without knowing the details. 

    The DG611/613 is rated for operate off V+ of 5 to 21V and V- of -10 to 0V. If the system supply is V+ = 5V and V- = 0V (ie. single supply), then YES the TMUX1111/ TMUX1113 can be a good candidate to replace DG611/DG613 since the TMUX11xx can operated with a single supply from 1.08V to 5.5V. However, everything above 5.5V would make the TMUX11xx not compatible. 

    The TS12A4451x devices can be another candidate. These device support single supply operation up to 12V and have the following specification to meet/be compatible with DG611/DG613:

    • RON up to 50ohms.
    • Charge injection = 1.5pC

    If the customer can live with higher RON, the TMUX611x family of devices can give much better operation voltage range (up to +/-16.5V), better charge injection (0.6pC typ), low CON (4.2pF), and COFF (1.9F). 

    If none of these options are acceptable, we do have high voltage, low RON devices in development that we will be sampling soon. 

    Thanks,
    David

  • Hi David,

    thanks for the input, will try to get customer's feedback on the parts mentioned above.

    Regards,

    Leo

  • Hi Leo,

    We haven't heard from you in a while so we will assume your issue was resolved. I will mark this issue as closed but if you have additional questions you may reply here to re open the thread or start a new one. 

    Thanks

    Saminah