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-   -   Ada4898-1 (http://www.diyaudio.com/forums/solid-state/127525-ada4898-1-a.html)

Filburt 4th August 2008 03:04 AM

Ada4898-1
 
http://www.analog.com/en/amplifiers-...s/product.html

Looks interesting. I wonder why the overview page states -110dBc THD+N @ 500KHz while the product page states 93, and the datasheet seems to indicate 95. Also wonder why it costs less than half what the AD797 costs when it appears to be indicated to use the same process and the same or similar topology, whilst being considerably faster.

peranders 18th December 2008 03:04 PM

This opamp caught my interest also. Very good specs.

It's worth noticing that this opamp has a powerpad also :nod:

syn08 18th December 2008 04:17 PM

Re: Ada4898-1
 
Quote:

Originally posted by Filburt
http://www.analog.com/en/amplifiers-...s/product.html

Looks interesting. I wonder why the overview page states -110dBc THD+N @ 500KHz while the product page states 93, and the datasheet seems to indicate 95. Also wonder why it costs less than half what the AD797 costs when it appears to be indicated to use the same process and the same or similar topology, whilst being considerably faster.

I already got a couple of samples from AD and had a chance to quickly evaluate them. They are very, very good. I would always trust the data sheet over any marketing overwiev.

Don't know about the pricing, but I'm not sure if it's in the same process as AD797. About distortions, for +/-15V, loads over 1KOhm and and a few volts output swing, you can count for distortions in the audio frequency range of better than -110dB.

peranders 18th December 2008 04:32 PM

The website says 1.91 USD :bigeyes:

AD8599 seems to be very nice too. :nod:

syn08 18th December 2008 04:36 PM

Quote:

Originally posted by peranders
The website says 1.91 USD :bigeyes:
That's in large quantities. Expect $5 for singles via distributors, still very good.

PMA 9th October 2010 03:54 PM

I suppose this might be the best opamp for audio ever made.


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