[sdiy] tl ic question

[Tim Parkhurst]

On Sat, Jul 11, 2009 at 12:47 AM, mailing
gigaspeeds<mailing at gigaspeeds.be> wrote:
> *
> Hi,
>
> Just starting out and have a couple of questions concerning parts (again :p
> ).
>
> the TL series... there's TL072CP/CN/IP/BCN etc... a bit confusing for a
> beginner :p
>
> For the mankato filter I need for instance tl074BCN but the store where I
> order stuff only has the : TL074CP ... Is it ok to substitute it ?
> Where lies the difference, or what is the most important value I have to
> compare in a datasheet to see the difference ?
> The low noise model (IP), does it really make a difference ?
>
> I also can't seem to find the : tempco (or temco) 2K +3500ppm/C°, do they
> have alternate names maybe ?
>
> as usual, thx for the help !
>
> Benjamin
> *

Hey Ben,

Lotsa good responses here, and they're all correct. By the way, if you
ever get advice from Paul Schreiber, take it and count yourself lucky.
Mr. Paul knows his stuff!

The main difference between the TL074Axx, Bxx, and Cxx grades is the
voltage offset. I spec'd the B grade as it was only a few cents more
at Mouser, and it had the lowest offset. It probably won't make much
of a difference (the 074s in the Mankato are in the audio section),
but I thought it would help keep the all of the sections matched a
little better. Feel free to sub an A or even a C grade for the
Mankato.

And yes, we do have the 2k tempcos for $3.50 at Magic Smoke (less if
you buy two or more).


Tim (lower grade, but cheaper) Servo
-- 
"Sire, the church of God is an anvil that has worn out many hammers."
- H.L. Hastings