does OTA can connect a low resistance(for feedback)

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wangkes9

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like figure , a detector input circuit.
We use a low resistance(for feedback) .

Is it a low resistance load and need a buffer for OTA ,
or consider it as a feedback fictor , OTA is OK ?

Thanks
 

wangkes9 said:
like figure , a detector input circuit.
We use a low resistance(for feedback) .
Is it a low resistance load and need a buffer for OTA ,
or consider it as a feedback fictor , OTA is OK ?
Thanks
Click to expand...

Your problem is not clear to me. What really is the question ?
The output voltage is
u(out)=i(in)*(1/gm - R).

Was that your question ?
 

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