[sdiy] low input bias current opamps

d1ffeq at teknik.io d1ffeq at teknik.io
Wed Aug 15 09:02:34 CEST 2018


I've found several candidates:

1. TLE2074CN
2. AD713JNZ
3. OP482GP, 3pA typical Ib but it's obsolete part


August 15, 2018 6:53 AM, "David G Dixon" <dixon at mail.ubc.ca> wrote:

> Hey Team,
> 
> I'm looking for opamps with the following properties:
> 
> 1) Through-hole
> 2) Quad opamp
> 3) 14-DIP package
> 4) High power range (+/-18V, say)
> 5) Low input bias current (10 pA or less typical)
> 6) Pin-compatible with TL074, etc.
> 7) Not LF444 (cuz they all seem to be defective)
> 
> So, basically, I'm looking for a suitable alternative for LF444.
> 
> So, here are my questions:
> 
> A) Do you know of such a thing
> B) How does one go about finding such a thing, generally?
> 
> Thanks in advance!
> Dave (Floating VCA) Dixon
> 
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