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Ths3201失真

Other Parts Discussed in Thread: THS3201
我用的是ths3201高速电流反馈运放,实物搭出来最大只能放大两倍;
用Tina仿真,根据datasheet给出的表搭的电路,出现以下三种情况:
1. Gain=2时,Rg和Rf都取715Ω,波形输出正常
2. Gain=5时,根据datasheet给出的数据,波形勉强没失真,但增益还是没有达到五倍。
3. Gain=10时, 波形严重失真,而且增益也没有达到10倍(仿真出来只有2倍左右)
此外,电路前已经串联了50Ω电阻
想问下各位问题出在哪里了?
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