[sdiy] Happenin' new opamp

[Tim Ressel]

They don't say explicitly as far as I can see, but the internal diagram 
shows FETs.

I am doing a design that has 11 dual amps in it and noise became an 
issue. The OPA1678 really helped. I guess that's why I'm liking it.

--tim


On 5/23/2017 2:14 PM, Jarno Verhoeven at ziggo.nl wrote:
> I don't think I'll ever finish that stick of DIP TL074's I bought a 
> while back, do love quad SMT opamps, nice n compact :-)
> Looks like a nice opamp indeed, about 1 euro in 10's. Somewhat higher 
> supply current compared to TL074, and a tiny bit slower. But only a 
> third of the noise, nice.
> Not exactly a bruiser of an output stage, same as TL074. 
> Interestingly, they don't mention the inputs, but it has to be JFET right?
> Regards,
> Jarno.
>
> > Op 23 mei 2017 om 21:30 schreef Tim Ressel <timr at circuitabbey.com>:
> >
> >
> > Hey,
> >
> > Writing to say the OPA1678 from TI is a pretty nice little amp. Low
> > noise, low distortion, low bias current, low cost. Is a dual; 
> OPA1679 is
> > a quad. SMT only, sad to say, but that be the times we live in.
> >
> > http://www.ti.com/lit/ds/symlink/opa1678.pdf
> >
> > --
> > --Tim Ressel
> > Circuit Abbey
> > timr at circuitabbey.com
> >
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-- 
--Tim Ressel
Circuit Abbey
timr at circuitabbey.com

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