We are using the ADM1184. The circuit is very simple:
We experience glitches (high-low-high glitches) on OUT2.
These do not correspond to glitches on the input VIN2 and also exist when all "loads" on OUT2 are disconnected.It is coming from the ADM itself.
We see low (0.5Vpp) glitches in the same time on the 3.3V Vcc of the device.
VIN2 climbes to 3.8V and activates the ADM at 1.9V
What can cause that?
An addition to the original post:
We noticed a slow rise of ADM1184 Vcc (3V3_IN) caused these glitches.
Is there a minimum rise-time for ADM1184 Vcc?
How slow is the rise time of the 3.3V rail powering the ADM1184, and is there any ripple/noise on the 3.3V rail when it's ramping up?
Can you please take a scope capture of the voltage on Vcc and glitch that you see on OUT2 pin.