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multiple op's amp
multiple op's amp
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Old 2nd June 2005, 06:47 PM   #1
adason is offline adason  United States
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Default multiple op's amp

I searched and searched, but can not find that link anymore
does anybody have a schematics of an amp built on many paralel op's?
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Old 2nd June 2005, 07:09 PM   #2
neutron7 is offline neutron7  Canada
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well i am planning a similar thing but it is multiple TPA6120s


macboy has a circuit there you might start from.
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Old 2nd June 2005, 07:17 PM   #3
Steven is offline Steven  Netherlands
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Jan Meier designed an amp with multiple opamps in parallel. The special thing about this amp is that the output opamps have their outputs connected via different resistors to the power supply lines to create a kind of semi class A, with multiple breakpoints.

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The Analog Art shows no sign of yielding to the Dodo's fate. The emergence and maturation of monolithic processing finesse has perhaps lagged a bit behind the growth of the Binary Business. But whereas digital precision is forever bounded by bits, there is no limit excepting Universal Hiss to the ultimate accuracy and functional variety of simple analog circuits. - Barry Gilbert, 1973
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Old 2nd June 2005, 09:04 PM   #4
adason is offline adason  United States
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thanks, thats exactly what I was looking for. I need working schematics to lean on, dont want to reinvent stuff.
That classA operation of op amp is a great thing, I have done it on my riaa preamp with noticeable sonic improvement. Highly recommended.

Neutron7, I have a large supply of good quality op's, so I have to stick to them, thanks for info anyway.

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