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AD844

I want to purchase AD 844 current feed back operational amplifier, I have done simulation of a circuit which involves AD 844. Now  I want to design that circuit but I am not sure How to feed current as an input in AD844.

AD844 require current as an input but I am not aware of a device which can give output as current so tell me from where I can get this current.

In my project I have to relate this current with frequency so I need an IC which can convert frequency to current but this current should be an AC current because the circuit which i am using (with AD844) cannot run on DC as it has some capacitor circuitry involved.

MainPaper.pdf
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  • Thanks for your reply Kris. I will read MT-057 attached by you and yes absolutely right I want some IC which can convert frequency to some sort of current and this current should be AC current. So if you encounter with this sort of IC please Let me know.

    and i am attaching the paper which involves the circuitry which i am using in my project(Page 4 of pdf). You can see it and give your suggestions.

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  • Thanks for your reply Kris. I will read MT-057 attached by you and yes absolutely right I want some IC which can convert frequency to some sort of current and this current should be AC current. So if you encounter with this sort of IC please Let me know.

    and i am attaching the paper which involves the circuitry which i am using in my project(Page 4 of pdf). You can see it and give your suggestions.

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