[sdiy] Adding CA3140 to archive...

[Harry Bissell Jr]

The 3140 is useful for applications where you want a really, really
  high input impedance... mainly S/H  or inregrator applications..
  
  Its offset voltage is not great, in many cases the TL071 would be
  a competitor in input impedance. 
  
  H^) harry

Aaron Lanterman <lanterma at ece.gatech.edu> wrote:  
As you may have seen I like to put little notes so the students (or 
whoever) can have sense of when to use what part... someone suggested I 
add the CA3140 (which I have seen in many designs) - when would I want to 
use it vs. some other op amp?

(As I'm adding notes, I'm going to try to appropriately credit who came up 
with them...)

- Aaron

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Dr. Aaron Lanterman, Asst. Prof.       Voice:  404-385-2548
School of Electrical and Comp. Eng.    Fax:    404-894-8363
Georgia Institute of Technology        E-mail: lanterma at ece.gatech.edu
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