[sdiy] dual prec. op amp options?

Ian Fritz ijfritz at comcast.net
Thu Dec 21 02:35:09 CET 2006


Careful! OPA2277 is not the same family (SR = .8, eg).  It's a dual OPA277.

I believe you want the OPA2227 (dual OPA227).  Yeah, easy to confuse.



At 04:20 PM 12/20/2006, Fernando de Izuzquiza wrote:
>Thank you Ian.
>
>Well, I'm now seeing all OP27 descendants and OPA27 exists too...!
>
>OP27
>http://www.analog.com/en/prod/0,2877,OP27,00.html
>
>OPA27, OPA227
>http://focus.ti.com/docs/prod/folders/print/opa27.html
>
>OPA2277
>http://focus.ti.com/docs/prod/folders/print/opa2277.html
>
>(2s and 7s overdose =:s)
>
>Fernando
>
>
>
>
>El 20/12/2006, a las 22:31, Ian Fritz escribió:
>
>>Oooops!  Left off a digit.  Corrected below.
>>
>>
>>>>I'd like to find a similar specs op amp but dual (you may suggest
>>>>alternatives to the single OP27 too...)
>>>
>>>OPA2227 is a dual OPA227 (improved OP27). I use it a lot for CV
>>>circuitry.
>>>
>>>   Ian




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