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<DIV dir=ltr align=left><SPAN class=197095622-08082024><FONT face=Calibri>My
answer to those questions is very simple: 2164. I haven't used an OTA
for 12 years. And I am constantly discovering new and exciting ways to use
2164. Just recently, I figured out how to control many different 2164s as
linear amplifiers from a single 2164 logarithmic source. They are
exceptionally easy to implement in some very elaborate control schemes, as long
as you locally buffer the CV. And they make THE BEST multipliers, if
you're clever.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=197095622-08082024><FONT
face=Calibri></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=197095622-08082024><FONT face=Calibri>I'm
just in the process of buying 1000 V2164Ds, so if anybody needs a few for a
really good price, hit me up privately.</FONT></SPAN></DIV><BR>
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<FONT size=2 face=Tahoma><B>From:</B> Synth-diy
[mailto:synth-diy-bounces@synth-diy.org] <B>On Behalf Of </B>Dan Snazelle via
Synth-diy<BR><B>Sent:</B> Thursday, August 08, 2024 11:09 AM<BR><B>To:</B>
Synth-Diy mailing list<BR><B>Subject:</B> [sdiy] Best AVAILABLE OTA for building
new designs?<BR></FONT><BR></DIV>
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Non-UBC Email]</FONT></TD></TR></TBODY></TABLE>
<DIV
style="FONT-FAMILY: Calibri, Helvetica, sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt"
class=elementToProof>imagine someone asked you to make some new synth
modules.</DIV>
<DIV
style="FONT-FAMILY: Calibri, Helvetica, sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt"
class=elementToProof>then imagine that the last time you did so in any quantity
above one--- it was 2017. </DIV>
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class=elementToProof><BR></DIV>
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<DIV
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class=elementToProof>I am trying to get a handle on what the parts landscape is
like now for cost-effective CV control. Back in 2017 the lm13700 was really the
only available OTA . I was just starting to work with the ssm2164 at the time
but never used it extensively.</DIV>
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class=elementToProof><BR></DIV>
<DIV
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class=elementToProof>In the interim I have built synth circuits but only in
quantities of one where cost was no object and I was able to rely on my own
extensive parts supply. </DIV>
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class=elementToProof><BR></DIV>
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<DIV
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class=elementToProof>So my question is this-- if I am thinking about design for
manufacturing<SPAN style="DISPLAY: inline-block"
class="_Entity _EType_OWA_HYPHEN _EId_OWA_HYPHEN_1 _EReadonly_1"><SPAN
id=hyphen2 class=hyphen>—</SPAN></SPAN>what do you think the best option
is? </DIV>
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class=elementToProof><BR></DIV>
<DIV
style="FONT-FAMILY: Calibri, Helvetica, sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt"
class=elementToProof>Has anyone tried the quad ALFA OTA? Is it even readily
available? Same for the new SSM2040. </DIV>
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class=elementToProof><BR></DIV>
<DIV
style="FONT-FAMILY: Calibri, Helvetica, sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt"
class=elementToProof>OR would you just use the 2164 instead? </DIV>
<DIV
style="LINE-HEIGHT: normal; MARGIN: 0px; FONT-FAMILY: Calibri, Helvetica, sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt"
class=elementToProof>OR would you just try to make discrete OTAS out of say the
BCM856DS //BCM847BS</DIV>
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class=elementToProof>thanks for any and all opinions on this. </DIV>
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