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AD8610 supply current

Question asked by cseppento on Nov 2, 2017
Latest reply on Nov 5, 2017 by cseppento

Hi!

 

I am trying to use an AD8610 opamp in an active loop filter for a PLL, but after applying a 25V supply voltage my power supply indicates 25mA of supply current instead of the 3-4mA described in the datasheet. How is it possible? The PLL was either off or with the charge pump configured as a three-state output, so there wasn't any input and I checked the board, there are no faults, short-circuits etc. Is it normal operation for this opamp?

 

Thanks,
Bence

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