esdeath_123
Junior Member level 3
For a two stage miller operational amplifier like the one shown below, what are the poles and zeroes? Jespers' book include these equations but no matter what I do, my simulations do not match or is too far away from the expected output...
The equations in the book are as follows:
Are these equations correct? Because no matter how I manipulate the variables, I either end up with really less bandwidth and/or gain or the stability is only around 20 in my simuations, even though Jespers book supposedly assures that setting the zero a decade beyond the gain-bandwidth product should net a 60 degree phase margin at least...I did this but could not even achieve that....Or am I misunderstanding something?
The equations in the book are as follows:
Are these equations correct? Because no matter how I manipulate the variables, I either end up with really less bandwidth and/or gain or the stability is only around 20 in my simuations, even though Jespers book supposedly assures that setting the zero a decade beyond the gain-bandwidth product should net a 60 degree phase margin at least...I did this but could not even achieve that....Or am I misunderstanding something?