For Our upcoming project, requirement is to measure from 50nV to 1V. Previously, I worked with AD7124 to measure RTD,K-type thermocouple and Pressure sensor. Even if I get 100% throughput (All 24 bits) which is not practically possible, I will only get 150nV per count for 2.5V reference. So, I have to go to 32 bit ADC to get the accuracy. And also, we are thinking of selecting Adaptive gain ADC. Can anybody suggest suitable ADC?
We have recommended drivers for AD7177-2. Please see ADA4528-2 and ADA4522-2. You can also use our evaluation board as your reference circuit. Please see attached schematic.