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麻烦推荐一颗DDS对应放大器，要求能把4-20mv放大到5V，谢谢
您好，输入信号频率多大？4~20mV输入，如果20mV输入5V输出，那么增益为250，所以要确定运放的增益带宽， 可以考虑了下宽带宽的OPA695 这款，另外需要考虑运放的输入失调电压尽可能小。 下面是找Vos<1mV的精度运放的选型链接。 您参考下。
https://www.ti.com/amplifier-circuit/products.html#o7=High-speed%20op%20amps%20(GBW%3E=50MHz);Precision%20op%20amps%20(Vos%3C1mV)&p1498=Catalog
