A bandwidth and slew rate (SR) enhanced operational transconductance amplifier (OTA) with proposed sustainable dynamic bias, transient detector and passive on-chip high-pass filter is presented in this brief. The proposed design is able to detect large-signal applied to the input of the amplifier and dynamically adjust its bias current to enhance both unity-gain bandwidth (UGB) and SR at the same time to achieve fast-settling behavior without overshoot and undershoot, along with high immunity against variations of supply voltage and bias current. Fabricated with a commercial 130-nm CMOS technology, the proposed design is verified by measurements that it is able to increase its SR by over 15 times, with more than 7.5 times reduction in its power consumption to attain fast settling time compared with a conventional design. Design considerations and an architectural comparison of the proposed design with another design with a different approach are also included in this brief to verify its performance and viability.

中文翻译：

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具有可持续动态偏置的带宽和压摆率增强型 OTA

本简介中介绍了一种带宽和压摆率 (SR) 增强型运算跨导放大器 (OTA)，该放大器具有建议的可持续动态偏置、瞬态检测器和无源片上高通滤波器。所提出的设计能够检测施加到放大器输入端的大信号并动态调整其偏置电流，以同时增强单位增益带宽 (UGB) 和 SR，以实现快速稳定行为而不会出现过冲和下冲，以及对电源电压和偏置电流变化的高免疫力。该设计采用商用 130 纳米 CMOS 技术制造，经测量证实，与传统设计相比，它能够将其 SR 提高 15 倍以上，功耗降低 7.5 倍以上，以实现快速的建立时间.