[sdiy] Resistor math

[Tom Bugs]

I'm sure there's some discussion around such things in the excellent 
Small Signal Audio Design by Doug Self:
http://www.soundonsound.com/sos/jun11/articles/small-signal-audio-design.htm
 From memory, I think it is suggested that switching should be before 
the summing resistors, possibly with shunt to ground.
Ta, Tom

On 22/05/2013 12:41, rburnett at richieburnett.co.uk wrote:
> ...I think i'd be more worried about the finite off-resistance (or the 
> CMOS switch's stray off-capacitance) bleeding enough current into the 
> virtual earth of the op-amp to cause leakage problems when the switch 
> is meant to be firmly off.
>
> -Richie,
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
>

-- 
BugBrand LTD
UK company No. 07199808
VAT No. GB 988 2629 57
1 Ninetree Hill
BRISTOL BS1 3SB
United Kingdom
www.bugbrand.co.uk