Integrated circuits and methods to provide an operative coupling comprising an input stage and an output stage between an analog input and an analog output; synchronously operate a plurality of high voltage domain switches of the input stage and a plurality of low voltage domain switches of the output stage at a frequency to galvanically isolate the input stage from the output stage across a plurality of capacitors having a plurality of input plates respectively connected to the switches of the input and output stages; supply an analog input signal to the input stage; transfer a differential voltage signal component within a range of a common mode voltage supply from the high voltage domain of the input stage to the low voltage domain of the output stage; differentially amplify the low voltage domain differential voltage signal component; and output an analog output signal.