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Quadrature impuls high speed amplifier

Tonci Curkovic
Prodigy 10 points
Other Parts Discussed in Thread: LMH6552, LMH6521, LMH6702, TINA-TI

Circuit characteristics are:

-input voltage 3,3V, quadrature signal on frequency between 80MHz and 120MHz

Maybe, the problem is that output signal need to be at least 10V or higher (not necessarily), again quadrture signal, not some kind od sinusoide. 

I have one more question, would it amplifier work correctly on frequency of 80Mhz and some other lowest frequency. The thing is that for some reason, sometimes i need to decrease frequency on 50 MHz for example. So I need amplifier with wide frequency range, as much as possible.

Thanks for answers,

Best Regards

Tonci Curkovic

  • 0
    TI__Genius 13935 points

    Hi Tonci,

    Is your signal path single ended or differential?  What load resistance do you need to drive?  How linear do you jneed the signal at the output?  10V is pretty large for linear operation. 

    Our LMH6521 will drive a fairly large output signal, but it is differential and uses a 5V power supply.  The LMH6552 is a 12V amplifier but also differential. 

    The LMH6702 is a single ended 12V amplifier. 

    You should be able to test your circuit on TINA-TI using our supplied models.  Look under the tools & software section for the TINA models in a convenient reference design file.

    Regards,

    Loren

    Regards,

    Loren