When the magnitude of (AoL )×( ß ) = 0dB, state the condition at which system become stable?
(a) Phase angle is > -180^o
(b) Phase angle is < -180^o
(c) Phase angle is > +180^o
(d) Phase angle is < +180^o
I had been asked this question in an interview.
The doubt is from Closed-Loop Frequency Response and Circuit Stability topic in portion Practical Limitations of Op Amp Circuits of Linear Integrated Circuits