dac89

[Guido Goebertus]

Stewart,

>A local surplus store has the DAC89-002k for $1 each. It says it's an 8bit
>A-Law DAC. I assume this means it has an exponential output. However I
>can't find a datasheet for it. 

It's a PMI chip. To be more accurate a 'A'law companding D/A converter. The
law is implemented with an eight chord (or segment) piecewise linear 
approximation for each polarity with 16 linear steps in each chord.
It claims 11 bit accuracy. $1 is a bargain.
I have a data sheet, but no scanner. If you need the pin out I'll mail it to you.

Regards,
Guido

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