[sdiy] Best AVAILABLE OTA for building new designs?

[Mike Bryant]

Surely you just use the more modern more integrated designs.  They will be more accurate and use less board space.
I'm sure Neil J can pipe in here with exact figures on how much more accurate they are.
________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Dan Snazelle via Synth-diy <synth-diy at synth-diy.org>
Sent: 08 August 2024 19:08
To: Synth-Diy mailing list <synth-diy at synth-diy.org>
Subject: [sdiy] Best AVAILABLE OTA for building new designs?

imagine someone asked you to make some new synth modules.
then imagine that the last time you did so in any quantity above one---  it was 2017.


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.

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.


So my question is this-- if I am thinking about design for manufacturing—what do you think the best option is?

Has anyone tried the quad ALFA OTA? Is it even readily available? Same for the new SSM2040​.

OR would you just use the 2164 instead?
OR would you just try to make discrete OTAS out of say the  BCM856DS //BCM847BS

thanks for any and all opinions on this.








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