An amplifier having improved distortion characteristics is set forth. The
amplifier includes an interleaved PWM amplifier that generates
interleaved PWM pulses in response to a modified input signal and one or
more carrier signals. The interleaved PWM pulses of the amplifier are
used to drive a power stage, such as an opposed current power stage. The
amplifier also includes an interleaved PWM generator that provides
interleaved PWM pulses in response to the modified input signal and one
or more further carrier signals. The carrier signals used by the PWM
generator may differ in phase from the carrier signals used by the
interleaved PWM amplifier to generate its interleaved PWM pulses. One or
more feedback circuits are employed in the generation of the modified
input signal. More particularly, the feedback circuit(s) generates the
modified input signal based on an input signal that is to be amplified
and the interleaved PWM pulses of the interleaved PWM generator.