Overall Topologies and Frequency Compensation
An operational amplifier intended for use in VLSI mixed-mode systems should be able to operate under conditions which differ from application to application. One can think of different types of passive feedback, varying load impedances, process variations, temperature variations, and many more. Under all these varying conditions an operational amplifier has to be stable. To achieve this stability, it has to act like a one-pole system up to its unity-gain frequency under all circumstances.
KeywordsOperational Amplifier Root Locus Load Capacitor Output Transistor Cascode Transistor
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