Many people are scratching their heads at the NE5532's distortion specs, for some reason never listed. I found what looks like a reliable source of tests and they are ultra low.
Now if I could just find a complete data sheet. The ones I find are all minimal. Maybe for proprietary reasons, secrets kept for manufacturers in the days when it was so exceptionally superior.
https://www.eetimes.com/document.asp?doc_id=1278866
Now if I could just find a complete data sheet. The ones I find are all minimal. Maybe for proprietary reasons, secrets kept for manufacturers in the days when it was so exceptionally superior.
https://www.eetimes.com/document.asp?doc_id=1278866
It's 1980s datasheet disease, they used to really suck.
Hate to break it to you, but NE5532s aren't even all created equal. Depending on who you buy them from, they'll vary in driving ability (somewhat) and input impedance distortion / CMRR(f) (potentially significantly - e.g. Samuel Groner found that a modern TI part was about 20 dB worse than an old Signetics). Designers are not generally keen on revealing the "pecking order" of currently available parts.
Hate to break it to you, but NE5532s aren't even all created equal. Depending on who you buy them from, they'll vary in driving ability (somewhat) and input impedance distortion / CMRR(f) (potentially significantly - e.g. Samuel Groner found that a modern TI part was about 20 dB worse than an old Signetics). Designers are not generally keen on revealing the "pecking order" of currently available parts.
As mentioned, the 5532 measurements are from Doug's book 'Small signal audio design'. The book is well worth its price as a source for this kind of data. Recommended.
Jan
Jan
I have some trouble with how they work in a two band bass and treble equalizer. Oscillates at low bass or high treble settings. TL082 doesn't. I only have two LME49860's and do not want to risk them.
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