Amplifier circuit!?! Urgent Help Needed!

Discussion in 'Homework Help' started by johnjoe2000, Dec 6, 2009.

  1. johnjoe2000

    Thread Starter New Member

    Dec 6, 2009
    4
    0
    Hi,

    Can someone help me with a module I am taking ( which is in tommorow!) Its a question of a op amp circuit and I have no idea!!!

    Any help is appreciated

    Thanks

    [​IMG][​IMG]DIAGRAM ATTACHED****************
    [​IMG]

    (i) What function does the circuit provide?
    (ii) Describe the function of each of the components in the circuit
    (iii) What change would you make to this circuit to turn it in to a unity gain amplifier? State suitable values for any components you change or add to the circuit.
    (iv) What change would you make to the circuit to turn it into a simple two-input mixer? State suitable values for any components you change or add to the circuit.
    (v) What change would you make to the circuit to turn it into a low pass filter? State suitable values for any components you change or add to the circuit.
    (vi) Give your opinions of the relative merits of op-amp-based circuits compared to discrete component-based circuits (i.e. where individual transistors and components are utilised to prove signal gain and processing).
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    I extracted the amplifier circuit from your Word document:

    [​IMG]

    Our E-book section on operational amplifiers is here:
    http://www.allaboutcircuits.com/vol_3/chpt_8/index.html

    Asking for help on Sunday afternoon when you have a test Monday morning is a bit late, don't you think?

    Perhaps you could plan your study time better.
     
  3. johnjoe2000

    Thread Starter New Member

    Dec 6, 2009
    4
    0
    Thanks for the help

    it not a test i just need to try and answer those questions by tommorow.

    I should definitely have put in more time but i have too much work with the main subjects on my course ( this is seperate module)

    i will look at all the information everyone has given

    thanks this site definitely helps
     
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