求助~~~~！！！！
按照OPA615 datasheet中提供的电路图搭建峰值保持电路，输入64MHz方波（VCXO提供），Vpp=1.5V（0~1.5V），二极管用的是1N4148，电容用50pF，输出电压为1.09V，误差比较大，不知道是什么问题，求大神帮助。
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