AD604 as front end

I am interested in use AD604 as the front end to an instrument, this instrument will work up to 1Mhz, I need lowest noise possible and Input Impedance of 20K

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    •  Analog Employees 
    on Feb 18, 2016 11:03 PM

    Hi Carlos,

    It depends on the application. If you have a 50ohm source it usually means the source needs to be terminated, and this is shown in fig 52, for example. In this instance the source isn't shown, but a great many US transducers were once 50ohms.

    If your application isn't 50 ohms, or if it is terminated you may not need 50 ohms but you may need to terminate fo preserve waveform integrity. depending on the distance to the signal source.

    Best,

    j

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  • 0
    •  Analog Employees 
    on Feb 18, 2016 11:03 PM

    Hi Carlos,

    It depends on the application. If you have a 50ohm source it usually means the source needs to be terminated, and this is shown in fig 52, for example. In this instance the source isn't shown, but a great many US transducers were once 50ohms.

    If your application isn't 50 ohms, or if it is terminated you may not need 50 ohms but you may need to terminate fo preserve waveform integrity. depending on the distance to the signal source.

    Best,

    j

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