运放单端供电(5V),负反馈,当运放的输入端差分电压小于0V时,其输出电压是否可以被钳位到0V,或者略高于0V的某个固定值,看规格书中都需要负压供电!
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补充一下,这两款运放都是轨至轨输出。事实上,轨至轨也达不到完全的轨至轨,就像OPA365,datasheet上描述的是轨至轨输入输出,其实输出距离电源轨最大也有20mV,典型值为10mV,也就是说单电源供电,输出最低达不到0V,在10mV~20mV之间。
OPA2188 也是,不带负载的话,单电源供电最低为6mV。