Class AB differential line drivers

摘要

An output stage of a differential line driver generates a differential output signal. A common-mode component of the differential output signal is decoupled from the differential output signal using a common-mode voltage sense. The common-mode component of the differential output signal is provided to a capacitor that is coupled between the output stage and the common-mode voltage sense.

主权项

1. An apparatus, comprising:
a first input stage configured to generate a first signal responsive to a first differential input signal; a second input stage configured to generate a second signal responsive to a second differential input signal; a first output stage configured to generate a first differential output signal responsive to the first signal generated by the first input stage; a second output stage configured to generate a second differential output signal responsive to the second signal generated by the second input stage; and a common-mode voltage sense configured to decouple a common-mode component of the first and second differential output signals.