different sampleus time for three ADCs

[Dave]

"So nobody there knows how to use different sampleus times for several ADCs on 18F4550 or any other with several ADCs? I'm using picbasic pro. "

Well, For starters, there is only 1 10 bit A/D converter on board the PIC in question. Second thing is why would you want to change the sampling time? Are you changing the oscillator frequency? If the oscillator frequency is the same for all operations then, look at the data sheet and set the DEFINE ADC_SAMPLEUS to the minimum for the oscillator frequency being used. That way you get the quickest A/D settling time and quickest A/D conversion.