A signal regenerator is provided which includes a common mode reference
generator and a signal converter circuit. A common mode reference voltage
level is generated which is variable in relation to at least one of a
process used to fabricate the common mode reference generator, a level of
a power supply voltage provided to the common mode reference generator or
a temperature at which the common mode reference generator is operated. A
signal converter circuit receives a differentially transmitted signal
pair including a first input signal and a second input signal and outputs
a single-ended output signal representing information carried by the
differentially transmitted signal pair. Using a feedback signal from the
common mode reference generator, a feedback control block controls a
common mode level of the single-ended output signal in accordance with
the common mode reference voltage level.