[sdiy] beginner's op-amp question

Dino Leone dino.leone at stanford.edu
Tue Apr 5 03:29:31 CEST 2005


Thanks so much!!

Best,

Dino




>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





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