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

symbol pin configuration
Symbol & Pin Configuration

Inverting Input

Output

Non-inverting

Input

inverting and non inverting
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

non inverting amplifier
Non-Inverting Amplifier
  • Inverting input is grounded.
  • Signal is applied to the Non-Inverting input.
  • Output is in Phase.
closed loop connection
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

what is gain
What is Gain??

Gain = Output / Input

Gain of Op-Amp (Inverting Mode)=-Rf/R1

Gain of Op-Amp (Non-inverting Mode)=1+Rf/R1

differential and common mode
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.
pre lab
Pre-lab

1.Copy of LM741 Data Sheet ??

2. What Is CMRR ??

3. What is Slew Rate ??

references
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