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ADA4896-2 output saturating in unity gain

Question asked by percy on Jan 30, 2018
Latest reply on Jan 30, 2018 by percy

Hi

 

I have a design that uses a ADA4896-2 in unity gain mode. I have a 5V and -2V supply. The amplifier drives a analog switch, ADG719. The amp works fine if I have the input voltage below about 4.3V. If I then increase it the output just saturates at the 5V supply (I get about 4.9V). Does anyone know why this would occur? 

Thanks

Jon 

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