一种微小信号放大器电路的设计

Intelligent Computer and Applications(2020)

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Abstract
由于微小信号频率较低,且易受到外界噪声干扰的特性,给低频小信号放大器电路的设计带来困难.文中采用OP1177放大器来放大微弱小信号,并基于TLC2652运算放大器设计了一种用于微弱小信号的放大器电路.本设计的放大电路同时具有较高的输入电阻和较低的输出电阻,并取得了较强的共模抑制作用,可以放大0~300 Hz的低电压,且工作稳定,失真度较小.
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