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Old 10th February 2012, 10:33 PM   #1
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Question TL082 Stereo Amplifier

I have found an TL082 OP Amp and was wondering if I could put it to use as a stereo amplifier. Does anyone know if this is even possible, and if so, where I could find a schematic showing me how to do so?
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Old 10th February 2012, 10:55 PM   #2
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It is an op amp and more suited to a pre amplifier.

It might drive some high impedance headphones at a modest level at a push.
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Old 10th February 2012, 10:58 PM   #3
mikje is offline mikje  United States
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If you do a Google search for it, you'll find a lot of info.
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Old 11th February 2012, 10:03 PM   #4
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Quote:
Originally Posted by nigelwright7557 View Post
It might drive some high impedance headphones at a modest level at a push.
That seems about right. The near-identical TL072s are measurably unhappy with anything from 2k2 down, but still do a decent job driving 600 ohm headphones. They're a little noisy, too, and I do think they suffer from latch-up when the input gets near negative supply. At least power drain is quite low.

It's a very old, very inexpensive chip. They were used by the bucketload in the 1980s, but are well past their prime now.
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Old 11th February 2012, 11:13 PM   #5
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No, not much good to build an amp out of it, at least not anything useful because whatever your source is will be able to drive speakers as well as a TL082 in between source and load could, UNLESS you put a higher current capable buffer after it, which is what you more or less end up with by just buying and using a proper stereo amp chip instead.

Use chips with MORE current capability than you're likely to need, rather than less.
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Old 12th February 2012, 07:28 AM   #6
Elvee is offline Elvee  Belgium
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Quote:
Originally Posted by fraser80 View Post
I have found an TL082 OP Amp and was wondering if I could put it to use as a stereo amplifier. Does anyone know if this is even possible, and if so, where I could find a schematic showing me how to do so?
You probably also have one or two voltage regulators around, here is a fun way to put all that to good use:
SE class A regulator-chip-amp madness
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Old 13th March 2012, 04:56 PM   #7
zarra68 is offline zarra68  Romania
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Have you ideea for the TL083,made by east-germany in 80',is not so much data in web.I have more then 8 pieces,is the same with TL072!?Where i buy,the seller says is for the crossover!?
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