1 Tai-Cheng Lee Fall 2007 Operational Amplifiers Tai-Cheng Lee Electrical Engineering/GIEE, NTU.

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Presentation transcript:

1 Tai-Cheng Lee Fall 2007 Operational Amplifiers Tai-Cheng Lee Electrical Engineering/GIEE, NTU

2 Tai-Cheng Lee Fall 2007 Ideal Op Amp Characteristics Ideal op amp

3 Tai-Cheng Lee Fall 2007 Differential and Common-Mode Signal

4 Tai-Cheng Lee Fall 2007 Inverting Configuration 2.2 Inverting amplifiers

5 Tai-Cheng Lee Fall 2007 Inverting Amplifier with Finite OP Gain

6 Tai-Cheng Lee Fall 2007 Weighted Summer-(1)

7 Tai-Cheng Lee Fall 2007 Weighted Summer-(2)

8 Tai-Cheng Lee Fall 2007 Noninverting Configuration 2.3 Noninverting amplifiers

9 Tai-Cheng Lee Fall 2007 Voltage Follower Source follower

10 Tai-Cheng Lee Fall 2007 Difference Amplifier 2.4 Differential Amplifier

11 Tai-Cheng Lee Fall 2007 Common-Mode Rejection Ratio CMRR Single op-amp difference amplifier

12 Tai-Cheng Lee Fall 2007 Superposition in Difference Amplifier-(1) Differential Signal

13 Tai-Cheng Lee Fall 2007 Superposition in Difference Amplifier-(2) Common-Mode Signal

14 Tai-Cheng Lee Fall 2007 Superposition in Difference Amplifier-(3) Input Impedance

15 Tai-Cheng Lee Fall 2007 Instrumentation Amplifier-(1)

16 Tai-Cheng Lee Fall 2007 Instrumentation Amplifier-(2) If signals are in differential

17 Tai-Cheng Lee Fall 2007 Instrumentation Amplifier-(3) Advantages and disadvantages

18 Tai-Cheng Lee Fall 2007 Non-Ideal Effect in Op Amp–(1) Finite bandwidth

19 Tai-Cheng Lee Fall 2007 Non-Ideal Effect in Op Amp–(2) Finite gain

20 Tai-Cheng Lee Fall 2007 Large-Signal Analysis Vmax and Vmin for op amp

21 Tai-Cheng Lee Fall 2007 Slew Rate-(1) Maximum rate of changes at the output

22 Tai-Cheng Lee Fall 2007 Slew Rate-(2) Full-Power Bandwidth

23 Tai-Cheng Lee Fall 2007 DC Imperfection 2.7 DC Imperfection

24 Tai-Cheng Lee Fall 2007 DC Offset-(1)

25 Tai-Cheng Lee Fall 2007 DC Offset-(2)

26 Tai-Cheng Lee Fall 2007 Input Bias and Offset Current-(1)

27 Tai-Cheng Lee Fall 2007 Input Bias and Offset Current-(2)

28 Tai-Cheng Lee Fall 2007 Input Bias and Offset Current-(3)

29 Tai-Cheng Lee Fall 2007 Integrator and Differentiator 2.8 Inverting configuration with general impedances

30 Tai-Cheng Lee Fall 2007 Integrator-(1) The inverting integrator

31 Tai-Cheng Lee Fall 2007 Integrator-(2)

32 Tai-Cheng Lee Fall 2007 Integrator-(3) Lossy integrator

33 Tai-Cheng Lee Fall 2007 Differentiator

34 Tai-Cheng Lee Fall 2007 Op Amp Macromodel-(1)

35 Tai-Cheng Lee Fall 2007 Op Amp Macromodel-(2)