The ADA4895-1 datasheet lists the maximum differential input voltage to +/-0.7V and that the differential current should be limited to 10mA. In the non-inverting mode for a gain of 10x the recommended resistors are Rfb = 226, Rg = 25.5. If the input can be as high as 5V the total resistance from the input though the to Rg to ground would need to be 500 ohms. With Rg = 25.5 ohms the input resistor would need to be 475 ohms.
Is there a different/better way to insure the input current is limited to 10mA?
Note: The 5V input is the input clamp voltage not the normal operating input voltage.
Are you saying it is not a problem to increase the resistance between stages? Why is that different than the input resistance to the first stage.
The latest design has 50 ohms between stages.