...(even if it DID measure AC current.. which it does not).
RTFM !!!!!!It DOES measure AC.
A CT must be biased mid-voltage, and the the AC current sinewave must be sampled many times to get the shape or peak of the wave.Same difference with a bipolar ACS712/723, except that the biasing is already done for you (idle out = VCC/2).Not a problem to measure AC with these chips.Leo..
I never noticed that there was also an AC version.
A CT requires a "burden" (a load resistor). The AC voltage across the burden can be rectified and filtered, then fed to an ADC...
"For best linearity, choose R such that V < 0.8 VL"
The bi-directional version is common (± DC and AC). The uni-directional one is not.