I have some doubts about building an adc driver.
I have to build an amplifier for the differential adc. The sensor is geophone.
The design should have lowest noise and lowest power consumtion.
I can use an instrumentation amlpifier ad8422 with some operational amplifier to create a differential output.
or i can use a ADA4084 (dual version) in order to build a first stage of the instrumentation amplifier from the discrete componentds.
The gain of the amplifier should be about 1000.
I don't care to much about the offset because of the HPF in the dsp algorithm .
I will be thankful for any suggestion .