> Part number is ACS750SCA050 .
> 
> With 5V in, provides a nom 2.5V output with no current
> flowing. The chart indicates high accuracy in either direction
> out to 50A. Insertion R is 130uOhm. Looks like all I have to
> do is to acquire the 2.5V level when powering up (assuming
> no current flow).
> 
> The specs are so good I am skeptical. Anybody?
> 
> --Bob

The thing that turned me off them was the pinout. No, I didn't expect to put a 50 amp part in a breadboard :-)
The leadframe needs oval holes for the high current connections, puts it outside the limitations of the "prototype" service from all the board houses I checked - board costs easily exceeded the price of a precision shunt resistor and op-amp.

-Denny


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