XBee sensor connection

is it possible to connect an analog sensor (like this infrared detector:
http://www.robot-italy.com/product_info.php?cPath=15_47&products_id=1395 ) DIRECTLY to the analog in of the XBee module?
I hope it is possible indeed, since I need the XBee in a really no-space enviroment (I need to install one onto a motorcycle helmet and I have no space for a controller between the two, the receiver xbee is under the seat of the driver so it has more space).
Thanks so much