Jacki
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Hi,
I see this buffer in an integrator-oscillator, and I am a little confused about this buffer. Can anyone explain what this buffer does in the circuits? Normally this kind of connection in an OTA will give a negative grounded resistor. Because "Vi=Vo" (the same in the simulation), it works as a unity gain buffer. Why don't we use the voltage follower connection (Vi is at the positive input, and the Vo connects to the negative input)? Somebody told me that "Vi=-Vo", and this buffer works as a block of "-1", but I cannot understand how to calculate the results based on the node current theory. Thank you. Jacki
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