you modulate the input signal at slightly higher frequency than DC (so offset does not count anymore and flicker noise impact is highly reduced). At this frequency the amplifier gain is still high, then, you demodulate the signal at the output.
Nathan,
Can you pls elaborate on the same. How exactly do we the modulation (up-conversion) and demodulation in the device.
Lets us consider the case of the opam in the ADC then how we are going to take care of the offset voltage using the chopper stabilization so that the harmonic distortion in the the ADC is less.
Will this upconverter and downconverter will not add some nonlinerity to our circuit are we not shifting the proble for one domain to other.
Can you tell me various method to reduce the offset voltage.