A circuit, comprising: a pair of output terminals (130, 132); a voltage-mode transmitter equalizer configured to be coupled to a power supply and to a pair of transmission lines via the output terminals (130, 132), comprising a driver controller configured to receive the input data and generate at least one control signal (108, 222, 224, 226); and a driver configured to receive the at least one control signal (108, 222, 224, 226) and to generate an equalized output signal representing a sequence of bits including at least one transition bit and at least one non- transition bit, wherein the generating the equalized output signal comprises adjusting an output voltage level of the equalized output signal corresponding to each bit in the sequence and depending on a data value represented by said bit according to the at least one control signal (108, 222, 224, 226), characterized in that the driver further comprises: a variable shunt conductance with variable conductance value Gs, a first pair of variable conductances with variable conductance value Gd and a second pair of variable conductances with variable conductance value Gu, with each of the first and second pair of variable conductances being formed by pull-up and pull-down conductances respectively and the variable shunt conductance being placed between the pull-up and pull-down conductances of the first and second pair of variable conductances, wherein the variable shunt conductance Gs and the conductances Gd and Gu of the first and second pair of conductances are adjustable by the at least one control signal, such as to hold a return impedance 1/GT substantially matched to a differential impedance 2/G0 of the transmission lines and to keep a data dependent variation of a supply current drawn from the power supply under 30% while the output voltage varies as the sequence of bits are transmitted, and in that the supply current is substantially equal to a line current on the transmission lines when the output voltage level is at a maximum value. a pair of output terminals (130, 132); a voltage-mode transmitter equalizer configured to be coupled to a power supply and to a pair of transmission lines via the output terminals (130, 132), comprising a driver controller configured to receive the input data and generate at least one control signal (108, 222, 224, 226); and a driver configured to receive the at least one control signal (108, 222, 224, 226) and to generate an equalized output signal representing a sequence of bits including at least one transition bit and at least one non- transition bit, wherein the generating the equalized output signal comprises adjusting an output voltage level of the equalized output signal corresponding to each bit in the sequence and depending on a data value represented by said bit according to the at least one control signal (108, 222, 224, 226), a variable shunt conductance with variable conductance value Gs, a first pair of variable conductances with variable conductance value Gd and a second pair of variable conductances with variable conductance value Gu, with each of the first and second pair of variable conductances being formed by pull-up and pull-down conductances respectively and the variable shunt conductance being placed between the pull-up and pull-down conductances of the first and second pair of variable conductances, wherein the variable shunt conductance Gs and the conductances Gd and Gu of the first and second pair of conductances are adjustable by the at least one control signal, such as to hold a return impedance 1/GT substantially matched to a differential impedance 2/G0 of the transmission lines and to keep a data dependent variation of a supply current drawn from the power supply under 30% while the output voltage varies as the sequence of bits are transmitted, and in that the supply current is substantially equal to a line current on the transmission lines when the output voltage level is at a maximum value.