Operational　transconductance　amplifiers　(OTAs)　are　widely　employed　as　active　elements　in　filters,　data　converters,　and　buffer　amplifiers.　Inverter-based　implementation　of　OTAs　is　an　attractive　approach　for　low　voltage　realization　of　analog　subsystems.　However,　there　are　still　fundamental　challenges　such　as　how　to　simultaneously　achieve　high　DC　gain,　bandwidth,　speed,　and　good　noise　performance　based　on　existing　inverter-based　OTA　architectures.　In　this　paper,　a　new　two　stage　OTA,　hybrid　with　current　reuse　inverter　OTA　and　Nauta　transconductor　is　proposed　to　improving　performance　by　taking　advantages　of　their　own　merits.　The　introduced　architecture　is　keeping　the　merits　of　Nauta　transconductor　such　as　high　bandwidth,　high　speed　and　the　superior　input　referred　noise　performance　of　the　current　reuse　inverter-based　OTA.　Furthermore,　in　order　to　reduce　the　PVT　variations,　bulk　tuning　circuits　based　on　＇detecting-feedback＇　loop　applied　on　CMFB　and　the　output　stage　of　Nauta　transconductor　is　proposed　to　dynamically　tune　the　output　DC　levels　under　PVT　variations.　The　proposed　new　hybrid　OTA　is　implemented　in　180nm　CMOS　technology　and　achieves　very　competitive　performance　compares　with　all　inverter　based　OTAs　and　the　other　state-of-the-art　OTAs.　©　2021　IEEE