No OTA anymore? And what is the purpose of the whole amplifier chain?LvW: I want to use the op amp "TL071" in all three stag
The purpose is just to construct a working amplifier chain. Then I'm going to test how the the amplification and phase changes for higher frequencies. But first I need to construct a cascade chain that works like intended (i.e. One voltage amp, one transcond. amp and one transres. amp).No OTA anymore? And what is the purpose of the whole amplifier chain?
You want help for the 2nd and 3rd amplifier - but we do not know what your intention is.
Ok. Check this out http://www.wisc-online.com/Objects/ViewObject.aspx?ID=SSE3303shteii01: I don't think that works, looks to me as if you've switched places of the load (third op circuit) and the resistor in the second amplifier. Also I'm thinking the output of the second amp should go into the - input of the third?
Ok, but why should I check out a link that doesn't answer my question?Ok. Check this out http://www.wisc-online.com/Objects/ViewObject.aspx?ID=SSE3303
Ok. I think I see what I did wrong.Ok, but why should I check out a link that doesn't answer my question?
So, what is the voltage at the inverting input of the second opamp? Is it the same as the non-inverting input of the second opamp, or of the third?I think second stage should look like this. The third stage is the load resistor of the second stage.
I already knew what was said there, and that is still not what I'm asking for, so why are you posting useless links?You don't know what OTA is. The material there explains what OTA is.
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