can use AD8231 extra op amp for comparator application. Thanks~
I think that you can use this additional op-amp as comparator. Note than this op-amp isn't fast
RAQ-11, Application Note AN-849 and Tutorial MT-084 all suggest that there are problems when you do this.
But they also suggest ways of avoiding them. Visit these sites:-
www.analog.com/.../MT-084.pdfThe answer is yes you can, but you must be very careful.