[sdiy] beginner's op-amp question

[Ray Wilson]

You can leave them off and yes it will affect the output offset which is 
typically in the 1 to 10 mV range.
High DC gain following that can be problematic though.

Ray


----- Original Message ----- 
From: "Dino Leone" <dino.leone at stanford.edu>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Monday, April 04, 2005 1:27 PM
Subject: [sdiy] beginner's op-amp question


> Hi all,
>
> I'm about to start my first "real" diy project involving some band-pass 
> filters (standard Deliyannis circuits as described in various 
> Electronotes), and I've stumbled over this very basic question:
>
> Is it OK if I leave the offset null pins not connected?
>
> After googling it I discovered that those usually are only used to get the 
> output to zero if there's no input signal... and one can put a trimpot 
> between the two... so, is it OK to not connect these in a filter circuit?
>
>
> Many thanks in advance,
>
> Dino
>
>