Part Number:LMH6401
提前谢谢各位帅哥美女的回答
Amy Luo:
您好,
datasheet中的大多数曲线可以外推至低于 10MHz 的频率,请查看datasheet 10.1.3.1 章节
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ZHEN liu:
谢谢您的回答,我看了10.1.3.1节,还有一个疑问是这节只说了在最大增益的时候,在低频的增益变化量为0.18dB,;在其他的增益的误差要更小一点还是更大一点呢
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Amy Luo:
您好,
但是datasheet紧接着下面又说“A patent pending technique is added that allows for the reduction of this overshoot to approximately 0.35%, thus eliminating the long-term settling and still retaining the wide dynamic performance range. The circuit also corrects for small systematic changes that occur at different gain settings and tracks temperature changes as well. This low-frequency gain correction is accomplished by the addition of a circuit that alters the gain at low frequencies to nearly eliminate the variation from low to high frequencies.”
意思是新增了一种正在申请专利的技术,允许将这种过冲减至大约 0.35 % ,从而消除了长的稳定时间,并仍保持了宽广的动态性能范围。该电路还修正了在不同增益设置下发生的小的系统变化,并跟踪温度变化。 这种低频增益校正是通过添加一个电路来实现的,该电路可以改变低频增益,从而几乎消除从低频到高频的变化