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<DIV><FONT face=Arial size=2>Hello all,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I have a question regarding two similar transistor
array chips, both of which I have seen in schematics for various analog synth
modules. I recently bought a bunch of the CA3086 arrays, specically with
the idea of making a copy of the ARP 4034 VCF, but also thinking I could
use them wherever I needed matched pairs. Since that time, in
searching the web for analog module info, I have seen a another similar array,
the CA3046, used in various analog module circuits. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>After checking the data sheets (from intersil.com),
it appears that only the 3046 has specific mention of device matching
parameters. I would assume that the two commonly connected transistors on
the 3086 are also matched, but for some reason its data sheet is silent
about this.</FONT><FONT face=Arial size=2> </FONT><FONT face=Arial
size=2> Does anyone have any alternative data sheets or experience with
the 3086 to show that its commonly connected pair is indeed a matched
pair, and if so, is the matching as good as (or better than) the
3046? Also, it seems as though these chips are either obsolete or
very soon to be. Are there any recommended modern
equivalents?</FONT></DIV>
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<DIV><FONT face=Arial size=2>thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Dave </FONT></DIV></BODY></HTML>