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【2017电子设计大赛】请教放大器的选择

 题目要求带宽:1MHz - 40MHz;增益:40dB, 要求在 0 - 40 dB 连续可调;负载电阻为 600时,输出电压峰峰值为 1V, 且波形无明显失真。

请问使用哪款芯片合适呢?