SOLVED: How can I reduce ADC jitter

[richard]

stick a 2200uF low esr electrolytic in every power rail on each bread-board and be done with it. if it still noisy add another set.

if that fails isolate noisy bits behind rfc's [rf chokes]. ditch the hi switching speed [noise inducing] mosfets for pwm, use bjt instead, its only a backlight

as ioannis says, breadboards and low noise are very close to mutually exclusive concepts