> http://www.allegromicro.com/en/Products/Part_Numbers/0754/index.asp

> So you just stick the large straight leads on the IC into any old
> ferrite core suppressor

The ferrite is in the package

> Or does this actually wire inline in the AC circuit being sensed?

Yes, in-line

> I thought these type of sensors were non contact

Most types are. This one happens to be integrated and part of the
circuit. If you want a clamp or feed-through sensor, have a look at
the link I posted earlier

> So a PIC can actually read the full output voltage of this sensor?

If Vcc of the PIC is greater than or equal to the Vcc of the sensor
IC, yes. Otherwise you'd have to scale down the sensor IC output

AFAIK, Hall sensors sit at Vcc/2. If you want just positive current
figures, that Vcc/2 to Vcc range can be expanded to 0V - Vcc
with a summing amp

As they recommend 5V for the IC Vcc, you'd probably use that
also for the PIC. Actually 5.12V would make the maths easier -
you'd have to check the error and linearity figures for the sensor IC
to see whether that's worthwhile
 
> I am not familiar with the voltage/current handling capabilities of
> most pic ADC's

The sensor IC is quoted at 1ohm o/p at 1.2mA. The recommendation
for some PICs is 5k input impedance, others at 2.5k input impedance.
They will work at higher i/p impedances if you have longer sampling
times or buffer with a capacitor

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