电路如图,OPA690替代OPA695,以下输入均为50KHz,200nS脉冲,测量的波形来自采样点。(请关注脉冲宽度)
输入波形为蓝色,采样点波形为白色,可以看到对于输入小于276mV的前半段,从采样点测到是没有波形的
OPA690相同输入条件下的采样点波形(与下图OPA695对比少了前半段)
OPA695相同条件下的采样点波形
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