A voltage driver circuit comprises a first transistor having a control
terminal and first and second terminals. A second transistor has a
control terminal and first and second terminals and generates a drive
voltage at the second terminal thereof. First and second current sources
bias the control terminals of the first and second transistors with first
and second variable current signals, respectively. A capacitance couples
the second terminal of the first transistor with the control terminal of
the second transistor.