Andrea Donno Stefano D'Amico Marcello De Matteis Andrea Baschirotto A 150MHz 3rd-order single Opamp continuous-time analog filter in 28nm CMOS technology. 161-164 2015 ICECS https://doi.org/10.1109/ICECS.2015.7440274 conf/icecsys/2015 db/conf/icecsys/icecsys2015.html#DonnoDMB15