I am struggling trying to think out a solution to design a transimpedance amplifier (TIA) which can convert 100 nA to 10 mA. This is 5 decades. I want to be able to amplify these to 1.5V minimum. (3V max).
"The logic supply voltage should always be less than or equal to VDD" should also apply to AD5260 / AD5262, since there is an internal diode between logic supply pin and Vdd pin. Hope that answers your query.