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  • TI Thinks Resolved

TS3A44159: For high voltage ultrasonic switching

Part Number: TS3A44159

Hello,

I am using the TDC1000-7200 GASEVM for liquid ultrasonic sensing using 1MHz transducers and I need a 2:1 switch for impedance matching the Tx and Rx lines. I managed to use the TS3A44159 without the boost converter as it can handle 5V and it worked fine. Now I need to find a similar switch in terms of T_off/on time and channels that can handle up to 30V input signals that the boost converter provides. 

I tried to ask in the ultrasonic sensing forum but I have not gotten any answer. 

Do you have any suggestion of suitable switch from you or third party? 

Thanks

Regards
Thibault

  • Hello Thibault,

    Would you like to take a look at TMUX6104? Please let me know which parameters do not fit your design requirements.

    Fan Wang

  • In reply to Fan.Wang:

    Hello,

    Thank you for your answer. We need to have four channels as illustrated in the circuit below:

    Also, 125ohm is a bit high as it will affect the impedance matching. 

    Regards,
    Thibault

  • In reply to Thibault Helle:

    Hi Thibault, 

    Thanks for putting a diagram into our discussion. Unfortunately, Our 4-channel 2:1 multiplexer that supports 30V has not been released to market. 

    Fan Wang

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