Doubt Regarding Opampssic

Discussion in 'General Electronics Chat' started by ashokevardhan@gmail.com, Apr 15, 2012.

  1. ashokevardhan@gmail.com

    Thread Starter New Member

    Mar 20, 2012
    1
    0
    sir,iam learning a basic course on electronics.. previously we have been taught OpAmps..in that i have few doubts 1)Where do we use buffers and what s the significance of using them.. 2)What are the typical values to be employed for R1 and R2 for an inverting Op Amp if i want a Gain of 100
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,446
    3,361
    1) when you need high impedance input -> low impedance output
    2) the ratio of the resistors is 100, but you have to show your circuit diagram
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
Loading...