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INTEGRATED CIRCUITS

INTEGRATED CIRCUITS. EE 2303. OVERVIEW. Introduction What are Op-Amps? Circuit symbol and Pin- Configuration Inverting and Non-inverting modes.. Gain of an Op-Amp.. REFERENCES. Introduction. Amplifier is a device which senses an input and produces a larger version of it.

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INTEGRATED CIRCUITS

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  1. INTEGRATED CIRCUITS EE 2303

  2. OVERVIEW • Introduction • What are Op-Amps? • Circuit symbol and Pin- Configuration • Inverting and Non-inverting modes.. • Gain of an Op-Amp.. • REFERENCES..

  3. Introduction • Amplifier is a device which senses an input and produces a larger version of it. • Amplifiers are used to boost electrical signals in devices (radio, televisions..) • Op-Amp: Class of High gain DC Amplifiers with two inputs and Single output

  4. Symbol & Pin Configuration Inverting Input Output Non-inverting Input

  5. Inverting and Non-Inverting Inverting Amplifier: • Non- Inverting input is grounded. • Signal is applied to the Inverting input. • Output is 180o out of Phase. http://www.national.com/onlineseminar/2003/opamps_basics/090303_Opamp_Trivia_Notes.pdf

  6. Non-Inverting Amplifier • Inverting input is grounded. • Signal is applied to the Non-Inverting input. • Output is in Phase.

  7. Closed Loop Connection • “Output is applied back in to the Inverting Input.” • Used in both Inverting and Non-inverting modes of Operation. http://www.national.com/onlineseminar/2003/opamps_basics/090303_Opamp_Trivia_Notes.pdf

  8. What is Gain?? Gain = Output / Input Gain of Op-Amp (Inverting Mode)=-Rf/R1 Gain of Op-Amp (Non-inverting Mode)=1+Rf/R1

  9. Inverting Summing Amplifier VOUT=V1+V2

  10. Op-amp as Oscillator

  11. Differential and Common mode • Common Mode: When both inputs of the signal have the same common voltage.. • Output will be zero in the common mode.

  12. Pre-lab 1.Copy of LM741 Data Sheet ?? 2. What Is CMRR ?? 3. What is Slew Rate ??

  13. REFERENCES http://www.national.com/onlineseminar/2003/opamps_basics/090303_Opamp_Trivia_Notes.pdf http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/opamp.html#c4

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