On 16/12/2010 18:15, V G wrote: > Hey all, > > I tried googling this, but got no answers. > > What happens when both inputs of an analog voltage comparator are equal i= n > voltage? What will the output be? Wikipedia says: > > -> + : output is negative > +> - : output is floating > > But it doesn't say what happens when the inputs are equal. with hysteresis it depends on last state. i.e. you have to have a=20 certain offset to change state, Without hysteresis, in the "real world" you get noise or oscillation.=20 Depending on layout, power decoupling etc. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .