I want to measure the output current of an ac induction motor using shunt resistors and current transducers. 2.5V shows zero point,while 5V indicates Imax and 0V indicates -I max.I need some documents

Hi Mahmut, you could achieve that using two opamp stages; non inverting amplifier with shunt resistor at input, then a level shifter with 2.5v offset.

Hi Mahmut, not sure your range requirement. FHS 40-P/SP600 is a cheap and good one. Datasheet has recommended circuit. You need to compensate for flux influence by other two phase on ADC.
ACS756 is another choice.

Hi,
Suggestion given by Swarup is a right solution, I have implemented this concept. for a ACIM. Also check Chuan Yan idea.