Equivalent components for space application

Hello,

I chosen 2 references from AD : ADA8561 and AD825. These components are available only on commercial level. I need of the same components but with space level (rad-hard). Please, could you help me about this subject?

Best regards

attachments.zip
  • 0
    •  Analog Employees 
    on Sep 17, 2012 11:47 PM

    Hi nemislatmos,

    Our space-qualified products follow a standard naming configuration: partnameS. (e.g. AD8561 space-qualified equivalent is AD8561S)

    We do not have ADA8561 in our portfolio. Did you mean AD8561? As mentioned, the space-qualified equivalent for this part is AD8561S. You can find its datasheet at this link. However, you also uploaded the datasheet for ADA4817 instead of the datasheet for AD8561, so if you mean the other, please just let me know and we can try to find a good part for you.

    The AD825 does not have a space-qualified equivalent, but we do have quite a few amps in our portfolio which you could substitute. You could try the AD847S or the OP42S. The AD847S is a high speed, low power op amp, while the OP42S is a high speed, fast settling JFET-input op amp.

    I hope this helps. If you want to try and check out more parts for your application, you can visit our page dedicated for aerospace products: http://mil-aero.analog.com/en/space/segment/ma.html

    All the best!

    Kris

  • Hi,

    Please find attached the datasheet of ADA4817 and AD825. Absolutely, our

    need is these two components (ADA4817 and AD825) but spatial version.

    Thank you for your answer.

    Sadok

    Le 18/09/2012 09:48, krisf a écrit :

    >

      EngineerZone <http://ez.analog.com/index.jspa>

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          Re: Equivalent components for space application

    created by krisf <http://ez.analog.com/people/krisf> in /Operational

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    <http://ez.analog.com/message/62139#62139>

  • 0
    •  Analog Employees 
    on Sep 18, 2012 6:37 PM

    Hi Sadok,

    Unfortunately we don't have space-qualified parts for the ADA4817 or the AD825. Since these parts take a long time for qualification, not all our commercial parts will be available for this application.

    If you don't mind, could you elaborate on which particular parameters of both parts you require for your application? We still do have a diverse portfolio and I could assist you on trying to find a replacement depending on what you need.

    Best regards,

    Kris

  • Hi Kris,

    Thank you a lot for your response.

    For the first component (FET inputs operational Amplifier) I need the

    following parameters :

       

    • Bandwidth = 1GHz

       

    • Fast slew rate < 850V/µs

       

    • RAD-HARD : at least 100Kard

    For the second component (JFET Amplifier), I need the following

    parameters :

       

    • Bandwidth : more than 40MHz

       

    • High speed (selw rate less than 150V/µs)

       

    • RAD-HARD : at least 100Krad

    Please, could you give us more information about the AD847-713Q

    (Radiation Tested, High speed, low power, operational amplifier)?

    Regards

    Sadok

    Le 19/09/2012 04:38, krisf a écrit :

    >

      EngineerZone <http://ez.analog.com/index.jspa>

    >

          Re: Equivalent components for space application

    created by krisf <http://ez.analog.com/people/krisf> in /Operational

    Amplifiers/ - View the full discussion

    <http://ez.analog.com/message/62291#62291>

  • 0
    •  Analog Employees 
    on Sep 20, 2012 12:34 AM

    Hi Sadok,

    I checked the AD847-713Q status from marketing and I'm sorry to say that this part is already obsolete. While the AD847-703Q is radiation-tested, I do not think I can guarantee you the rad-hard specification that you need.

    The next best thing that I can recommend from our portfolio is the AD8041S. It has a bandwidth of 160MHz and a slew rate of 160V/us. Radiation information is provided at this link.

    Our faster op-amps, on the other hand, (pertaining to your query on a replacement for the ADA4817) go only as high as a few hundred Megahertz. The best I can recommend is AD8001S, which has a bandwidth of 650MHz at a gain of 1. It also has a slew rate of 800 V/us. Radiation information for the AD8001S is provided at this link.

    I hope this helps in finding the best solution for your application!

    Best regards,

    Kris