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0.1% tolerance resistors would result in a junk DAC

If the resistors are 0.1% accuracy then the DAC will be accurate to roughly 10 bits. Unless there are other mechanisms to calibrate the circuit the result is unlikely to be good. Also, if the resistors are physically separated ("discrete") small temperature differences will affect performance. The result of inaccurate values will be distortion, especially ugly cross-over distortion on small signals.

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar


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