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NEED HELP IN SELECTING AMPLIFER

Vikas Narang
Prodigy 10 points

Hi

I am Vikas,I am looking for an amplifer which can amplife my signal from 1mA to 5 mA.

I am actually trying to vary the rpm of a pumpusing NI 9263

,Pump needs 0-10V ,5 mA.whereas NI 9263 can supplu 0-10V but only 1mA of current.

As of the low current pump rpm are not going above a limit.

I need to amplife the current from NI 9263,keeping the voltage same..

Please suggest something.I need it badly

Thanks

Vikas

  • 0
    TI__Prodigy 160 points

    Hi Vikas,

    Thanks for your question. Sorry about the delay in responding. Looks like you're essentially looking for a 36V opamp.

    Why don't you try our recently released OPAx171:

    http://focus.ti.com/docs/prod/folders/print/opa171.html

     

    Let us know if this is what you're looking for...if not, we can talk further regarding your most required specs.

     

    Thanks!

    ~Preeti

  • 0
    Genius 5430 points

    Vikas;

    It sounds as if all you need is an op amp that can swing 10V on its output. Put it in a voltage follower configuration and if you have bipolar supplies, the output voltage will go from 0 to +10V for a 0 to +10V input. Any op amp can put out 5mA.

    If you have only a single supply, simply chose an op amp that is capable of single-supply operation on its input and output. Check the selection guides.