Hi the ad8561 model in LTspice seems to be incorrect. see the picture i attached. the schematic has a vref of (2.5V) at the (+) input and i am suppling a ramp input at (-) . the output at pin 7(green) should go low when the input reaches 2.5v but it looks like its going high(green). i am not sure if this is correct. also the same goes for output at pin 8 (blue).





