Can I connect vout- to the ground (GND2) and Vout+ I connect direct to my microcontroller without using an OP AMP?
http://www.digikey.com/product-detail/en/broadcom-limited/ACPL-C87A-500E/516-3140-2-ND/3589042
http://www.digikey.com/product-detail/en/broadcom-limited/ACPL-C87A-500E/516-3140-2-ND/3589042