Takeshi Yoshida Miho Akagi Mamoru Sasaki Atsushi Iwata A 1V supply successive approximation ADC with rail-to-rail input voltage range. 192-195 2005 conf/iscas/2005 ISCAS (1) http://dx.doi.org/10.1109/ISCAS.2005.1464557 db/conf/iscas/iscas2005-1.html#YoshidaASI05