Operational Amplifiers ·Often called op-amps Widely used to construct analog controllers and many other analog circuits. e:inverting terminals oeo e2:noninverting terminals e。=K(e2-e) K:Differential GainOperational Amplifiers • Often called op-amps • Widely used to construct analog controllers and many other analog circuits. + - 2 e 1 e 0 e e 1: inverting terminals e 2: noninverting terminals ( ) 2 1 e K e e o   K: Differential Gain