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function generator - diy

Posted: Sun Sep 01, 2024 6:51 am
by Albertum
hi, I would like make a function generator. I am looking for a circuit diagram and a help about components. Any idea?

Re: function generator - diy

Posted: Sun Sep 08, 2024 12:51 am
by electrohebdo
First, you need to specify what you need - functions, frequency range ... In the past were produced several IC's for functions generators. I think the best was Maxim 038. This IC generates sine, square and triangle. Max. frequency was theoretically 20 MHz, really 16 MHz. Unfortunately, Maxim 038 is no more available. The China sellers on eBay offer only fakes. The China's fakes have many various problems, like limited frequency range or poor linearity, noise, etc etc.
Another way how to make function generator is to use classical operational amplifiers

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Re: function generator - diy

Posted: Sat Sep 14, 2024 5:36 pm
by Albertum
hi, thank you. Can you suggest a schematics for function generator with OpAmps?