Transconductance and slew rate improvement technique for current recycling folded cascode amplifier

A proposed technique to achieve transconductance and slew rate improvement of current recycling folded cascode amplifier is presented in this paper. It adopts the local common-mode feedback structure to increase gain-bandwidth, dc gain and slew rate of conventional recycling current amplifiers with no additional power dissipation. A proposed amplifier based on this technique is simulated on UMC 180 nm process. The simulation results demonstrate that the proposed amplifier achieves a 200% gain-bandwidth, 10 dB dc gain and 100% slew rate improvement with the same power dissipation when compared to the conventional current recycling counterparts.