There is also the TL06x family for the low power buffs out there...
The TL07x works for me... but if we stick to the familiar TL072
(8 pin) and TL074 (14 pin) layouts... you can sub in whatever you want.
Also note that sometimes TWO TL072 make for a cleaner layout than the
quad. I'd reserve the right to make that switch if it suits the layout
best...
H^) harry
john mahoney wrote:
>
> Grant raised the subject of op amps. I am aware that the TL0xx (TL072,
> etc.)
> are the default op amp of choice in the synth DIY world, and not
> without
> good reason, but I'd like to nominate another set of chips for
> consideration -- especially since (a) we're going to need a bunch of
> them,
> and (b) power consumption has already been raised as a concern (at
> least
> with regard to 5V power).
>
> The envelope, please. And the nominees are:
> The National LF442 dual and LF444 quad. I know of them because Ray
> Wilson
> (musicfromouterspace) uses them for things like the battery powered
> Sound
> Lab Mini-Synth. He has stated that he'd like to redesign some of his
> old
> circuits around them.
>
> I'm looking at the datasheets, but I honestly can't be sure that I'm
> comparing apples to apples. (I'm out of my league, here, but that
> never
> stopped me before. ;-) It's obvious that these LFs are about twice as
> noisy
> as the TL07x (35 nV/Hz^1/2 vs 18 nV/Hz^1/2) -- but that seems plenty
> low
> enough. But, is the power consumption very much lower? Is the power
> output
> great enough? I dunno!
>
> I do know that we aren't worried about how they sound. ;-)
>
> I leave it to the list brains to determine the worthiness of these
> chips.
> --
> john
>
> SPONSORED LINKS
>
> Music instrument stores Electronic Instruments
>
> Module
>
> ----------------------------------------------------------------------
> YAHOO! GROUPS LINKS
>
> + Visit your group "ComputerVoltageSources" on the web.
>
> + To unsubscribe from this group, send an email to:
> ComputerVoltageSources-unsubscribe@yahoogroups.com
>
> + Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> Service.
>
> ----------------------------------------------------------------------