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Sorry I don't know this one. Which manufacturer for AN6818?<br>
<br>
<br>
<div class="moz-cite-prefix">On 4/24/2017 11:41 AM, Cooper Sloan
wrote:<br>
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<div>Can I piggy back a little request on this thread for the now
missing AN app notes? AN6818 I think?</div>
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<div class="gmail_quote">
<div>On Mon, Apr 24, 2017 at 9:53 AM Justin Herrmann <<a
moz-do-not-send="true"
href="mailto:ebn303afxcut@email.com">ebn303afxcut@email.com</a>>
wrote:<br>
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<div class="m_8441906255982166525mail_android_message"
style="line-height:1;padding:0.5em">Datasheets for
CA3280, LM13700, and NE5517 all claim "excellent
matching" between the pairs, but none back up that
claim with numbers or guaranteed matching specs. On
the other hand, the SSM2164 claims "All channels are
closely matched to within 0.07 dB at unity gain."<br>
<br>
Has anyone compared how closely OTA devices within a
package match? Is it just gm that's important here? <br>
<br>
Justin<br>
<br>
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<div class="m_8441906255982166525mail_android_quote"
style="line-height:1;padding:0.3em">On 04/23/2017,
11:10 PM Michael E Caloroso <<a
moz-do-not-send="true" href="http://mec.forumreader"
target="_blank">mec.forumreader</a>@<a
moz-do-not-send="true" href="http://gmail.com"
target="_blank">gmail.com</a>> wrote:
<blockquote class="gmail_quote" style="margin:0.8ex
0pt 0pt 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
The CA3280 dual OTAs are also matched, which the
2164 cannot claim.<br>
There is no dual matched OTA IC currently available
on the market.<br>
<br>
MC<br>
<br>
On 4/23/17, David G Dixon <<a
moz-do-not-send="true"
href="mailto:dixon@mail.ubc.ca" target="_blank">dixon@mail.ubc.ca</a>>
wrote:<br>
> The exponential response of the 2164 is good
enough for just about anything<br>
> you need it to do. It is the heart of the
Dixie, Rubicon, and Atlantis<br>
> VCOs, and we have sold about a million dollars
worth of those, so it can't<br>
> suck all that hard.<br>
><br>
>> -----Original Message-----<br>
>> From: Synth-diy [mailto:<a
moz-do-not-send="true"
href="mailto:synth-diy-bounces@synth-diy.org"
target="_blank">synth-diy-bounces@synth-diy.org</a>]
On<br>
>> Behalf Of Ian Fritz<br>
>> Sent: Sunday, April 23, 2017 2:14 PM<br>
>> To: Tom Wiltshire; Jay Schwichtenberg<br>
>> Cc: <a moz-do-not-send="true"
href="mailto:synth-diy@synth-diy.org"
target="_blank">synth-diy@synth-diy.org</a><br>
>> Subject: Re: [sdiy] SSM chip reissue<br>
>><br>
>><br>
>><br>
>> The CA3280 is a much higher performance
chip. For example, it<br>
>> has a specially designed low noise input.
The expo response<br>
>> of the 2164 is pretty poor, compared with
what one can do<br>
>> with a good monolithic pair. Etc.<br>
>><br>
>> Ian<br>
>><br>
>><br>
>><br>
>> On 4/23/2017 12:52 PM, Tom Wiltshire wrote:<br>
>> ><br>
>> ><br>
>> > Talking of which, why not use the 2164
instead of the<br>
>> CA3280? You can<br>
>> > use it for filters, VCAs, and VCOs,
and it's got the exponential<br>
>> > reposnse built in, unlike the CA3280.<br>
>> --<br>
>> <a moz-do-not-send="true"
href="http://ijfritz.byethost4.com"
target="_blank">ijfritz.byethost4.com</a><br>
>>
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