This article presents an operational transconductance amplifier (OTA) with enhanced transconductance and slew rate. High transconductance is achieved by implementing local common-mode feedback (LCMF) in a new path. This new path also is used in providing the current splitting technique. The slew rate is significantly boosted due to a new slew rate enhancement circuit, a new quasi-floating gate (QFG) circuit and two non-linear current mirrors. The advantage of the proposed OTA is that its large-signal and small-signal figures of merits are remarkably improved compared to previous works. The post-layout simulation of the OTA is in TSMC $180\mathrm{nm}$ CMOS process. Monte Carlo and corner analyses shows the robustness of the OTA with variations of process and mismatch.

本文介绍了一种具有增强跨导和压摆率的运算跨导放大器 (OTA)。通过在新路径中实施局部共模反馈 (LCMF) 来实现高跨导。这条新路径也用于提供当前的分裂技术。由于新的压摆率增强电路、新的准浮栅 (QFG) 电路和两个非线性电流镜，压摆率显着提高。所提出的 OTA 的优点是，与以前的工作相比，它的大信号和小信号品质因数得到了显着改善。OTA的布局后仿真在台积电$180\mathrm{纳米}$CMOS工艺。蒙特卡洛和角点分析显示了 OTA 在工艺和失配变化下的稳健性。