This Hall transducer uses a DC ref of 2.5 offset for the zero crossing current and also uses a step-down current transformer for sensing (2000:1 or 2000:2 or 2000:3 ratio select) with a sensitivity of 104.16 mV/A centered around 2.5V with 0 to 5V range giving a max range of +- 19.2 Apk
Thus your AC current already converted to unipolar DC out with a 2.5V offset. If you need to condition this signal to DC for slow ADC readings, then a "precision Op Amp rectifier" using the 2.5V reference is required as well the same if you are measuring voltage.
Bonus info: If measuring VA & VAR then a multiplier with sine, cos signals is needed or similar to measure power and power factor.
the -6NP in the part number means the primary nominal current (RMS) is 6 Amp-turns to prevent saturation with 1,2,3 turn options. Note this is RMS vs 19 A pk for spikes.