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Old 5th May 2013, 10:31 AM   #1
M Gregg is offline M Gregg  United Kingdom
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Default Ideas for 8pin dip OP amp to beat OP27?

Any ideas,

for 8pin dip OP amp to beat OP27? (pin /voltage compatible/replacement)


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M. Gregg
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Old 5th May 2013, 11:00 AM   #2
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"beat OP27" at what??
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Old 5th May 2013, 02:34 PM   #3
M Gregg is offline M Gregg  United Kingdom
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Just looking for,

A more modern replacement better noise and drive..
There are two in the output of a DAC...left / right.

AD OP27..is there an updated version?

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Old 5th May 2013, 02:57 PM   #4
godfrey is offline godfrey  South Africa
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Try LM741. Nevermind what the meter-readers tell you, you may be surprised at the subjective performance. I'll almost guarantee you'll hear a difference.
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Old 5th May 2013, 03:16 PM   #5
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We're using the 741 Op-amp in the lab course for physics students: It's a quite old design with less-than-perfect performance that makes it easier to measure some of the imperfections and limitations of 'real world' Op-amps compared to 'ideal' theoretical ones.

I would seriously doubt that a 741 type will be an improvement.

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Old 5th May 2013, 03:51 PM   #6
M Gregg is offline M Gregg  United Kingdom
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Yes in the 70's 741 was the industry standard,,,

Any ideas on OPA134?

http://www.ti.com/lit/ds/symlink/opa2134.pdf


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Old 5th May 2013, 04:00 PM   #7
Budgie is offline Budgie  United States
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I like the OPA134. For the price, it's hard to beat.
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Old 5th May 2013, 04:09 PM   #8
M Gregg is offline M Gregg  United Kingdom
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Quote:
Originally Posted by Budgie View Post
I like the OPA134. For the price, it's hard to beat.
OK so if you were going to beat it what would you use?

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Old 5th May 2013, 04:31 PM   #9
eyoung is offline eyoung  United States
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have you looked at the LF353???

E
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Old 5th May 2013, 04:42 PM   #10
M Gregg is offline M Gregg  United Kingdom
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Think,

I'll use the OPA134...it looks OK..
Any one had issues with it?..stability etc..

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