Re: AD822, good TL062 replacement?

From: Carlos (clorenzo_at_eutelsat.fr)
Date: 11/27/04 

Date: 26 Nov 2004 18:22:38 -0800

Winfield Hill <hill_a@t_rowland-dotties-harvard-dot.s-edu> wrote in message news:<co805202lsl@drn.newsguy.com>...
> I'd say if you want 0.00008% distortion you'll have to pay the 4mA.
> Perhaps you can afford more distortion? If so, how much?

To be honest I think for this application something like 0.1% would be
more than adequate. The circuit is basically a unity gain input buffer
followed by the usual negative feedback tone control arragement with
+/- 20 dB boost/cut, so I'd say worst case would be G = 10 @ 5 kHz
(harmonics and all I don't expect much life above that freq, if any
the 15" speaker will filter it out anyway). Any candidates giving 0.1%
THD or better under those conditions plus better noise performance
than the TL062?

If not, what's the best I can do at or below 1mA/amp consumption?

Tnx+,

Carlos

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