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OP erational AMP lifier OPAMP

OP erational AMP lifier OPAMP. Bollen. OPAMP COMPONENT Overview Symbol and package Connections Internal Power connections Vcc and Vee examples Remmber 5 ideal rules Remember real opamp Feedback. BUFFER nity Gain, +1 Amp, Voltage Follower Transfer curve Application

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OP erational AMP lifier OPAMP

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  1. OPerational AMPlifier OPAMP Bollen

  2. OPAMP COMPONENT Overview Symbol and package Connections Internal Power connections Vcc and Vee examples Remmber 5 ideal rules Remember real opamp Feedback BUFFER nity Gain, +1 Amp, Voltage Follower Transfer curve Application INVERTING AMPLIFIER Virtual ground NON-INVERTING AMPLIFIER SUMMING AMPLIFIER Summing junction DA SUMMING AMPLIFIER VARIABLE AMPLIFIER DIFFERENTIAL AMPLIFIER AGENDA Bollen

  3. Course content OPAMP Analog Electronics T.E. Price OPAMP component page xxx Non- inverting amplifier page 427 Inverting amplifier page 433 Summing amplifier page xxx Difference amplifier page 441 Problems: chapter 13; 3,7,10,11,12,14,15 OPAMP Bollen

  4. Bollen

  5. OPAMP, symbol and package Bollen

  6. +V = Vcc = most positive power supply -V = Vee = most negative power supply V+ = non-inverting input V- = inverting input Output = output OPAMP, connections Bollen

  7. +V = Vcc -V = Vee V+ = non-inverting input V- = inverting input Output = output OPAMP, internal Bollen

  8. OPAMP, power connections Bollen

  9. OPAMP, Vcc and Vee, examples Bollen

  10. OPAMP,remember Bollen

  11. OPAMP, real world Bollen

  12. OPAMP, feedback Bollen

  13. Uout = Au (U+-U-) Uout = 200.000 (U+-U-) OPAMP, feedback Differential input voltage= ΔU = 0 !!! Only for negative Feedback Bollen

  14. The circuit will quickly reach a point of stability the output voltage is just the right amount of differential voltage accoding to the Au. Taking the op-amp's output voltage and coupling it to the inverting input is a technique known as negative feedback, and it is the key to having a self-stabilizing system. Because the op-amp's gain is so high, the voltage on the inverting input can be maintained almost equal to Vin. The output terminal, and the system holds there in balance. The higher the op-amp differential gain, the closer that differential voltage will be to zero. OPAMP,feedback ΔU = 0 Only For Negative Feedback Bollen

  15. Buffer, Unity Gain +1Voltage follower Rin = ∞ Rout = 0 Uin = Uout Bollen

  16. Buffer, transfer curve Bollen

  17. Buffer, application Accurate voltage divider, Rload = ∞, Iin = 0 Bollen

  18. Inverting amplifier Bollen

  19. Inverting amplifier Bollen

  20. Invertingamplifier Bollen

  21. VirtualGround Virtual = no current Ground = 0 volt Bollen

  22. Non-inverting amplifier Bollen

  23. Non-inverting amplifier Bollen

  24. Non-invertingamplifier Bollen

  25. Summingjunction Bollen

  26. Summingamplifier Bollen

  27. 3 bitDASummingamplifier Bollen

  28. 6 bitsDASummingamplifier Bollen

  29. Summing amplifier Bollen

  30. Variable amplifier Bollen

  31. Differential amp For R1 = R3 And R2 = R4 Bollen

  32. Bollen

  33. Instrumentationamplifier Bollen

  34. Instrumentationamplifier Rin = ∞ Gain = R1 Bollen

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