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Large temperature drift of gain at high frequencies

Question asked by Gennady_Karpov on Oct 14, 2013
Latest reply on Oct 15, 2013 by David.Buchanan

Hello !

 

I have a problem with large temperature drift of gain at high frequecies of input signal.

I use ADC AD9244BST-40. Input signal frequency is 180 MHz. ADC clock frequency is 11 MHz.

Temperature drift of gain for 180 MHz signal is 1000-2000 ppm/degree.

Is it normal ?

 

Temperature drift of gain for DC signal corresponds to Datasheet - is approximately 20 ppm/degree.

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