Terasic ADA Daughter Card

Hi,

I am using one of these Terassic ADA boards but really need to DC couple the input and output signals but notice that at least the input is AC coupled (with 0.1uF capacitor). Does anyone know if it is possible to DC couple the input ot at least change the capacitance/resistor value to reduce the time constant?

The amplitude of my input signal can change sharply (close to square wave) and I need to avoid the distortion caused by charging and discharging of the capacitor.

Thanks.

Ben