[sdiy] PCB op-amp layout - 2x2 or 1x4

[Chris McDowell]

Hey Justin,

I prefer to use dual packages. SOIC dual op amps are easy to work with and space efficient, and breaking up the sections of the circuit usually keeps things more organized, for me. 

Chris

> On Oct 29, 2015, at 1:25 PM, mark verbos <mverbos at earthlink.net> wrote:
> 
> Justin,
> 
> The big problem with the quad package opamps is that they are backwards in regard to power pins. Plus, the signal flow direction of them is out from the center, verses both the same direction on a dual. I haven't noticed a difference in performance, though.
> 
> Mark
> 
> 
> 
> 
> On Oct 29, 2015, at 12:59 PM, Justin Owen wrote:
> 
>> I guess there's probably not a hard right or wrong answer to this - but, when laying out a tight PCB with a lot of op-amps - do you choose 2x or 4x op-amp packages?
>> 
>> The 2x potentially gives you more placement flexibility - but increases overall parts count, the 4x decreases the part count but potentially leaves less room for routing traces between amps...
>> 
>> ...thoughts on this from experience?
>> 
>> Thanks,
>> 
>> - Justin
>> 
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