A chopper-stabilized amplifier that includes an analog driven level shifter is disclosed. The analog driven level shifter changes the levels of a pair of complementary clock signals according to a level associated with an input signal to the chopper-stabilized amplifier. The level shifted complementary clock signals are used to control switching devices used for chopping input signals of various voltages. The chopper-stabilized amplifier also includes symmetrical passive RC notch filters having two cut-off frequencies to reduce ripple noise from the chopping.