ACS712 to Arduino Due ADC input
All you need is a simple voltage divider cosisting of two resistors.



To meet sensor's output driver requirements for minimum load resistance of \$4.7\, \mathrm{k\Omega}\$, \$R_2\$ is \$3.3\, \mathrm{k\Omega}\$ and \$R_1\$ is \$1.8\, \mathrm{k\Omega}\$. This combination will scale \$5V\$ input to \$3.24V\$ output.