Super class AB RFC OTA using nonlinear current mirrors

Description

An alternative approach to the design of super class AB recycling folded cascode operational transconductance amplifiers is proposed. Instead of using local common-mode feedback for boosting dynamic currents, simple current mirrors with input transistors entering triode region for large currents are employed. Measurement results from a 0.5 μm CMOS test chip validate the proposal.

Abstract

Ministerio de Economía y Competitividad TEC2016-80396-C2-1-R

Additional details