[sdiy] the obscure output of a 2164

[Tom Wiltshire]

On 9 Mar 2017, at 10:47, Mattias Rickardsson <mr at analogue.org> wrote:

> On 9 March 2017 at 07:53, David G Dixon <dixon at mail.ubc.ca> wrote in
> his nice beefy 2164 description:
>> However, be careful about using 2164s in parallel, as they will not retain
>> independent control (I learned this the hard way as well).
> 
> Interesting, what kind of problems have you encountered here? :-)
> 
> I've used parallel 2164s for years and never noticed anything strange.

Yeah, I wondered about that part too. What "parallel" arrangement did you have in mind, David?

There's an example in the datasheet of four 2164s in parallel feeding a single I-to-V stage, IIRC - a handy voltage-controlled mixer design. Presumably that's not the "parallel" you're thinking of.

Tom