Avoiding the Gain-Bandwidth Trade Off in Feedback Amplifiers

作者：Pennisi Salvatore^*; Scotti Giuseppe; Trifiletti Alessandro

来源：IEEE Transactions on Circuits and Systems I-Regular Papers, 2011, 58(9): 2108-2113.

DOI：10.1109/TCSI.2011.2107211

• Constant bandwidth
• feedback amplifiers
• gain bandwidth product
• Operational amplifiers

The gain-bandwidth conflict is one the most important limitations of high gain feedback amplifiers. In this tutorial paper we will discuss in a unified manner the most important approaches aimed to design amplifiers with a constant closed-loop bandwidth. Advantages and drawbacks are evidenced and new potential solutions are also formulated.

• 出版日期2011-9