XTR305: Current consuption

Part Number: XTR305
Other Parts Discussed in Thread: XTR300

I am using XTR305 in my design for output 4-20mA or 0-10V.I want to use 4 XTR305 in my design.Can i know how much current will -15v and +15v will consume.So that i can able to choose powere supply module.