[sdiy] Op-amps CA3140 v. TL074

[Ian Fritz]

At 01:51 PM 7/30/2010, Neil Johnson wrote:

>The TLC272 single-rail op-amp does rather well too - at least on
>paper lower than the CA3140's input bias current by a good factor of
>ten.  Maybe the "single-supply" puts many people off?
>And very cheap as well.

Well, the max V_DD of 18V certainly puts me off.  Note also that the input 
bias current is specified with a 5V supply.

   Ian