[sdiy] Floating Point A/D?

[Grant Richter]

Just a silly thought.

A slope integrating analog to digital converter (better a dual slope)  
uses a counter to measure the charging time of a capacitor from an  
unknown voltage to convert it to a digital representation.

What if the counter used were a floating point variable?

It would still be quantized, but at least the result would be  
directly in floating point format.

Now if there were only practical a floating point DAC. I recall a  
discussion I read bout this. It is theoretically possible using a cap  
and an algorithm, but takes infinite time to resolve to a final value.