We　present　a　voltage　reference　using　a　wide-band　cascaded　current　mode　differentiator,　for　the　improved　PSRR　performance.　Compared　with　the　conventional　references,　the　reference　with　the　technique　is　mainly　characterized　by　a　two　cascaded　stages　current　mode　signal　differentiator.　In　the　differentiator,　a　zero　OTA　G　m　is　proposed,　to　achieve　the　wide-band　differential　characteristic.　With　the　technique,　the　PSRR　beyond　the　pole＇s　corresponding　frequency　can　be　significantly　improved　with　the　minimum　supply　voltage　only　about　V　GS-PMOS　+　(V　GS-NMOS　-　V　TH).　Fabricated　with　a　0.18　μm　CMOS　process,　with　the　0.9　V　supply　voltage,　the　PSRR　@　20　MHz　of　the　reference　is　achieved　at　-54　dB.　Moreover,　the　power　dissipation　is　19　μW.　©　2018　Chinese　Institute　of　Electronics.