Pourashraf, ShirinRamírez Angulo, JaimeRomán Loera, AlejandroLópez Martín, Antonio J.Díaz Sánchez, AlejandroGonzález Carvajal, Ramón2023-01-202023-01-202017Pourashraf, S., Ramírez Angulo, J., Román Loera, A., López Martín, A.J., Díaz Sánchez, A. y González Carvajal, R. (2017). High current efficiency classAB OTA with high open loop gain and enhanced bandwidth. IEICE Electronics Express,, 14 (17), 1-5. https://doi.org/10.1587/elex.14.20170719.1349-2543https://hdl.handle.net/11441/141632An efficient class-AB OTA with enhanced output current, slew rate, open loop gain, and gain bandwidth is presented. The circuit is based on a class-AB input stage with adaptive biasing, and an output stage with dynamically biased cascode transistors. It can deliver output currents 100 times larger than the bias current with a total quiescent power dissipation of 72 µW. Measurement results of a 180 nm CMOS test chip prototype show slew rate, gain bandwidth, and open loop gain enhancement.application/pdf5 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Class-AB, OTACurrent efficiencyinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1587/elex.14.20170719