模拟CMOS集成电路设计课件7. Operational Amplifier(CMOS).ppt,第*页 Examples 第*页 Examples 第*页 Examples 第*页 Incorporating the Nulling Resistor into the Miller Compensated Two-Stage Op Amp Circuit 第*页 Design of the Nulling Resistor (M8) 1). In order
Figure 2. 9 A current amplifier based on the circuit of Fig. 2. 8 Figure 2.9 A current amplifier based on the circuit of Fig. 2.8. The amplifier delivers its output current to R4. It has a current gain of (1 + R2/R3), a zero input resistance, and an infinite output resistance. ...
LEARNING EXAMPLE: DIFFERENTIAL AMPLIFIER KCL AT V_ AND V+ YIELD TWO EQUATIONS (INFINITE INPUT RESISTANCE IMPLIES THAT i-, i+ ARE KNOWN) THE OP-AMP IS DEFINED BY ITS 3 NODES. HENCE IT NEEDS 3 EQUATIONS OUTPUT CURRENT IS NOT KNOWN DON’T USE KCL AT OUTPUT NODE. GET THIRD EQUATION FROM ...
OPERATIONAL AMPLIFIER PPTopamp ppt
OperationalAmplifier PerformanceParameters-gain(1)A1Question:Ifthenominal(标称)gain(R1+R2)/R2=heminimumvalueofA1foragainerrorof1%?OperationalAmplifier PerformanceParameters-gain(2)Solution:Gainerror:Meansthatoncetheopen-loopgain(A1)largerthan1000,theclos
模拟集成电路Chapter 9-Operational Amplifier OperationalAmplifier PerformanceParameters-gain(1)A1 Question:Ifthenominal（标称）gain(R1+R2)/R2=10DeterminetheminimumvalueofA1foragainerrorof1%?Solution:OperationalAmplifier PerformanceParameters-gain(2)Av,nominal1/(R1R2)/R210 Av,closed A11A1 1 (1 1)A1 {...
To summarize, a good operational amplifier is characterized by a very large open-circuit gain of a million or so, an extremely small difference voltage between the inverting and the noninverting input terminals, a very high input impedance, and a small output impedance. An ideal operational ampli...
Hereonlytheapplicationoftheidealoperationalamplifier,theactualopampcanbeseenassimilartoanidealoperationalamplifier.Applicationofoperationalamplifiersisverybroad,hereweonlytalkabouttheopampwithsomefocusonothercomponentsofthecomputingcircuit.Applicationofcircuitoperationintermsofcomparisonwithothermoreextensive,andeasyto...
Evolution of op amps 2012-10-28《电子信息工程专业英语教程》15•Op amp - the universal analog IC–It can function as a line driver, comparator (one bit A/D) , amplifier, level shifter, oscillator, filter, signal conditioner, actuator driver, current source, voltage source, and etcA vital...
vd = 0 V and the current flowing into the output terminal of the op amp is as much as required to force v1 = v2 when V+< vo< V-. Operation of an op amp was used in the analysis of voltage comparator and inverting amplifier circuits. Effect of Ri < ∞ W and Ro > 0 W was ...