I'm sorry to be blunt, but why are you using this component? It is designed to solve a specific problem, which is to make an "ungrounded", "floating", or "differential" measurement of current in an ungrounded circuit, while maintaining +- 1000V isolation from the input side to the output side.
The device is an active device, meaning it contains opamps, etc which require split supplies to make it work.
I m designing Two of the LV25-NP and LA25-P transducer to read the voltage and current produced by the generator and also to read the voltage and current inside a lead acid battery.
This transducer board will be connected to a Microcontroller board which consist of a ADC and a DS89C450 chip and it is connected to a laptop via a serial port which display the values on the hyperterminal on a laptop.
Hope you do understand as my english is not that good.