I am working on AD 8222 differential configuration using the evaluation board. I was trying to get a frequency response of the system with a gain of 2 and with the input filter of Fcm=33.87khz and Fdiff=1.5khz. I tested out by inputting 1khz differential sine wave of 500 mV. But, I am getting any output from out- terminal. What could be the reason.? On the mean while I am getting a clipped positive cycle of 1v (gain of 2) from out + I may be doing something wrong, please help me out

Thanks Anne, for the reply.

I was using 1K .1% resistance with the figure 49 configuration.

Actually, I have solved the problem, but forgot to post it here. The issue was because I did not follow the point,common mode voltage is set by the average of the reference and the input 2 voltage. I grounded the Ref2 which caused my vcom ((2.5+0)/2) as my reference. Now, I have connected Ref2 and +in2 to Vcom which solved the problem.

But I have another question, If I am using a Cd<10 Cc what will happen? Is it advisable?