>Minimum means that time is enought to acomplish a conversion, so the more >Tad time you give, the more time you are wasting. So, minimum should be also >recommended in most cases, but that depends on how you do conversion and if >it's a speed critical aplication. So if I get an invalid value calculating the ADCS value using the minimum Tad time, should I just keep raising the Tad time until I get a valid answer? Equation 17-1 in the 30F family reference manual: Solving for ADCS with my instruction time and the minimum Tad value: [image: http://roboticsguy.com/images/misc/70046E_equation_17-1_solving_for_ADCS.png] Which equals: *-0.58335* If I make Tad 400ns then ADCS would equal 1. Is that what I should do? Thanks :) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist