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AD7928 Multi-channel problem

Question asked by edge on Mar 21, 2017
Latest reply on Mar 28, 2017 by edge

AD7928 multi channel problem.
Hi, Good Day. Im using ad7928 ADC, i only used a0 and a1 pin . I used potentiometer in both of the analog pin. the problem is, whenever i change the resistance of the one potentiometer connecting to A0, the output value of the analog  read in A1 also changes. I used alot to solve this problem, but still exist... I used two dummy cycle...  by the way, i used 20MHz.
i also checked all the timing requirements and it is correct through logic analyzer.. the only problem is that multi channel selection. please help..

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