azure_sky wrote on Apr 26th, 2013, 7:11pm:Even though the above circuit doesn't have the stability capacitor,
the actual circuit have the stability capacitor and leakage source.
The leakage source is connected to the output load.
The leakage source is better than the stability capacitor
according to the simulation.
Is it true ?
What do you mean by leakage source? This term sounds strange to me.
The picture is just showing the architecture of the amp. it might be possible that you need a cap, and also in the real life the output would be cascoded for higher gain. The pictures in the books are not showing the final circuit, they just show the circuit's structure and everything which is not necessary to understand the circuits operation is left out for the sake simplicity and better understanding of the fundamentals.