López Martín, AntonioGarde Luque, María PilarAlgueta-Miguel, Jose M.Cruz Blas, Carlos Aristóteles de laCarvajal, Ramón G.Ramírez-Angulo, Jaime2024-02-092024-02-092018Lopez-Martin, A.J., Garde-Luque, M.P., Algueta-Miguel, J.M., De La Cruz-Blas, C.A., Carvajal, R.G., Ramirez-Angulo, J. (2018) Enhanced Single-Stage Folded Cascode OTA Suitable for Large Capacitive Loads. IEEE Transactions on Circuits and Systems II: Express Briefs, 65(4), 441-445. https://doi.org/10.1109/TCSII.2017.2700060.1549-774710.1109/TCSII.2017.2700060https://academica-e.unavarra.es/handle/2454/47427An enhanced single-stage folded cascode operational transconductance amplifier able to drive large capacitive loads is presented. Circuits that adaptively bias the input differential pair and the current folding stage are employed, which provide class AB operation with dynamic current boosting and increased gainbandwidth (GBW) product. Measurement results of a test chip prototype fabricated in a 0.5-µm CMOS process show an increase in slew rate and GBW by a factor of 30 and 15, respectively, versus the class A version using the same supply voltage and bias currents. Overhead in other performance metrics is small.application/pdfeng© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.AmplifiersAnalog integrated circuitsCMOS integrated circuitsClass AB circuitsinfo:eu-repo/semantics/article2024-02-09info:eu-repo/semantics/openAccess