You will need an RRIO op-amp that will run off of 3.3V.=A0 First get two eq=
ual value resistors (say 20K 1%) and connect one to 0V and the other to 3.3=
V connect the junction of the two resistors to the inverting input of the o=
p-amp.=A0 This sets the offset voltage.=A0 Connect the output of the Allegr=
o current monitor to the non-inverting input of the op-amp.=A0 Then to set =
the gain, connect a resistor from the output of the op-amp to the inverting=
 input (say 10K 1% for a gain of 2) where there are already the other two r=
esistors connected.=A0 You can trim the gain by adjusting the 10K resistor =
value and you can trim the offset by adjusting the ratio of the two 20K res=
istors.=A0 For noise filtering you may want to try a 1K resistor between th=
e output of the op-amp and the input to the PIC and place a 0,01uF cap from=
 the PIC pin to 0V.=A0 Unless this slows the response too much.=20
--=20
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