Paul Stamler wrote:

Anyone here familiar with the AD1853 D/A converter chip? Does it have a
linearity problem in the top decibel (in other words, significantly higher
distortion from -1.0dBFS to 0dBFS)?

What about the AD1896 asynchronous sample rate converter? Does it have the
problem outlined above?

I do not know about the AD1853, but my experiences with the AD1896 and AD1893
converter chips have been good ones and didn't show any such evilness.

If the 1853 uses an external I/V stage, I might try replacing that with a
fixed resistor and fiddling with the resistor values for best linearity.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."