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ultrasonic transducers

Other Parts Discussed in Thread: TX810

Hi
i m using 2 ultrasonic transducer that is capacitive based one for transmitting and the other for receiving.
The transmitting signal is AC pulse at 5Vpp , 17MHz with DC bais of 60 V. This transmitted signal is received by the receiver transducer and its been given as an input to OPA 657 amplifier. And i am getting the output, which means the setup works fine. Below is the schematic of TX and RX mode.

Now my intention is to do the same TX/RX using a single transducer whose transmitting signal has to be blocked or limited , before it reaches the op-amp's input and allow only the received signal to the same op-amp input.
So i m in need of a switching component which has capability to work as per my requirement. I found TX810 to be a right component for my project. Is there any better alternatives that suits my project needs or TX810 is the best option to go for?

Thank you,

Livingstone Arjunan

  • Hello Arjunan,
    I am part of the amplifier team and am not an authority on suggesting the appropriate switch to use. can you please repost your query on the Medical forum. They will be in a better position to best support you:
    http://e2e.ti.com/support/applications/high_reliability/-Samir