AD9656 front end for narrow-band

Hello

We would like to use AD9656 for narrow-band application (circa 90MHz - 110MHz). Problem is that AD9656 has high fullscale for our application.

We have good experience with interfacing ADc with buffered inputs where transformers with 1:4 impedance ratio are used to achieve lower fullscale (see MT-006, MT-228 and AN-935).

The AD9656 has switched-capacitor input so this solution is more challenging. Do you think it is solvable? If so can you please provide input impedance parameter for band of interest?

Thanks and regards

Daniel