首页>
外国专利>
Tunable operational transcondunctance amplifier having high linearity
Tunable operational transcondunctance amplifier having high linearity
展开▼
机译:具有高线性度的可调运算跨导放大器
展开▼
页面导航
摘要
著录项
相似文献
摘要
An amplifier capable of being tuned to provide linear gain over a selected input signal range is disclosed herein. The amplifier includes an input stage for receiving an input signal. The amplifier further includes a tuning circuit, connected between the input stage and an amplifier output stage, for controlling gain of the amplifier by adjusting a tuning current supplied to the amplifier output stage. The tuning circuit may be realized with a differential transistor pair connected to a pair of transistors within the output stage. In a preferred implementation the input and output stages are arranged in a folded-cascode configuration so as to improve the output impedance and input common-mode signal range of the amplifier.
展开▼