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</style></head><body style=""><div>Ah yes, and if you need 11 you probably were glad that they are not 10 euro/usd/gbp each :-)</div>
<blockquote type="cite" style="position: relative; margin-left: 0px; padding-left: 10px; border-left: solid 1px blue;">Op 23 mei 2017 om 23:24 schreef Tim Ressel <timr@circuitabbey.com>:<br><br>
<p>They don't say explicitly as far as I can see, but the internal diagram shows FETs.</p>
<p>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. </p>
<p>--tim</p>
<br>
<div class="moz-cite-prefix">On 5/23/2017 2:14 PM, Jarno <a href="mailto:Verhoeven@ziggo.nl">Verhoeven@ziggo.nl</a> wrote:</div>
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<div>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 :-)</div>
<div>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.</div>
<div>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?</div>
<div> </div>
<div>Regards,</div>
<div> </div>
<div>Jarno.</div>
<div> </div>
<div> </div>
<div><br> > Op 23 mei 2017 om 21:30 schreef Tim Ressel <a href="mailto:timr@circuitabbey.com"><timr@circuitabbey.com></a>:<br> > <br> > <br> > Hey,<br> > <br> > Writing to say the OPA1678 from TI is a pretty nice little amp. Low <br> > noise, low distortion, low bias current, low cost. Is a dual; OPA1679 is <br> > a quad. SMT only, sad to say, but that be the times we live in.<br> > <br> > <a href="http://www.ti.com/lit/ds/symlink/opa1678.pdf">http://www.ti.com/lit/ds/symlink/opa1678.pdf</a><br> > <br> > -- <br> > --Tim Ressel<br> > Circuit Abbey<br> > <a href="mailto:timr@circuitabbey.com">timr@circuitabbey.com</a><br> > <br> > _______________________________________________<br> > Synth-diy mailing list<br> > <a href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a><br> > <a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a></div>
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<pre class="moz-signature">--
--Tim Ressel
Circuit Abbey
<a href="mailto:timr@circuitabbey.com">timr@circuitabbey.com</a></pre>
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