电压反馈和电流反馈运算放大器的比较

Current Feedback vs. Voltage Feedback Operational Amplifiers

从闭环特性、开环特性、输入级、噪声等几个方面,对电流反馈(CFB)放大器和电压反馈(VFB)放大器进行了详细的比较,得出了CFB放大器和VFB放大器的一些基本特性和应用场合。通过对这两种电路的比较,有助于电路设计师在实际应用中选择最适合自己要求的运算放大器。

Differences between current feedback (CFB) and voltage feedback (VFB) operational amplifiers are examined in detail, in terms of closedloop and openloop characteristics; input stage differences/advantages and noise Finally, basic performances of the CFB and VFB amplifiers and their general applications have been discussed The unique advantages in both CFB and VFB amplifier topologies allow design engineers to select the best amplifier for their particular needs